CN110636490A - WIFI signal discovery and countercheck equipment and system and method based on equipment - Google Patents
WIFI signal discovery and countercheck equipment and system and method based on equipment Download PDFInfo
- Publication number
- CN110636490A CN110636490A CN201910930333.7A CN201910930333A CN110636490A CN 110636490 A CN110636490 A CN 110636490A CN 201910930333 A CN201910930333 A CN 201910930333A CN 110636490 A CN110636490 A CN 110636490A
- Authority
- CN
- China
- Prior art keywords
- module
- wifi
- wireless
- terminal equipment
- target
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/60—Jamming involving special techniques
- H04K3/65—Jamming involving special techniques using deceptive jamming or spoofing, e.g. transmission of false signals for premature triggering of RCIED, for forced connection or disconnection to/from a network or for generation of dummy target signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/80—Jamming or countermeasure characterized by its function
- H04K3/82—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection
- H04K3/822—Jamming or countermeasure characterized by its function related to preventing surveillance, interception or detection by detecting the presence of a surveillance, interception or detection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/80—Arrangements enabling lawful interception [LI]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
- H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/005—Discovery of network devices, e.g. terminals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Databases & Information Systems (AREA)
- Technology Law (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses WIFI signal discovery and countercheck equipment and a system and a method based on the equipment, and relates to the technical field of network security. The intelligent police security system comprises a main control module, a signal scanning module, a wireless frequency band suppression module, a WIFI routing module, a data storage module, a GPS module, an Ethernet module, a mobile communication module and a wireless module, the WIFI signals are found through a signal scanning technology and a suppression attack technology, true WIFI signals are suppressed and attacked, false WIFI signals are imitated, equipment is positioned through the GPS module, and positioning information is sent to the main control module.
Description
Technical Field
The invention relates to the technical field of network security, in particular to WIFI signal discovery and countercheck equipment, and a system and a method based on the equipment
Background
With the increasing demand of network technology and mobile phone users on wireless communication, more and more wireless communication protocols appear, and the situation that global WIFI equipment is rapidly increased is directly driven, WIFI is applied as a short-distance wireless transmission technology in the internet era, and is paid attention to all circles with unique advantages, and the coverage range of WIFI is applied in the regional environments such as high-grade hotels, luxury residential areas, airports, coffee shops and the like. According to the 2008 statistical result of the WIFI alliance, the ranking of public places where each city has wireless network signals is as follows: hotels, resorts, restaurants, cafes, shopping centers, and bars.
The network becomes an indispensable thing in the life of many modern people, people have deeply realized the convenience that the network brings for life, simultaneously, the network also has anonymity, has fostered the production of criminal activity to a certain extent; at present, various illegal criminal activities by means of the network are renewed and layered endlessly, which not only causes huge property loss to the netizens, but also greatly harms the normal order of the network society, and increases the difficulty of the public security organization in detecting and handling such cases.
Disclosure of Invention
The invention aims to provide WIFI signal discovery and countercheck equipment, a system and a method based on the equipment, and aims to solve the technical problem that in the prior art, due to the anonymity of a network, the detection difficulty of public security on the network crime is high.
A device for discovering and countering based on WIFI signals comprises a main control module, a signal scanning module, a wireless frequency band suppression module, a WIFI routing module, a data storage module, a GPS module, an Ethernet module, a mobile communication module, a wireless module and a power supply, wherein the main control module is respectively connected with the signal scanning module, the wireless frequency band suppression module, the WIFI routing module, the data storage module, the GPS module, the Ethernet module, the mobile communication module and the wireless module; the power supply is respectively communicated with the main control module, the signal scanning module, the wireless frequency band suppression module, the WIFI routing module, the data storage module, the GPS module, the Ethernet module, the mobile communication module and the wireless module.
Further, the signal scanning module comprises a directional antenna and an omnidirectional antenna, the omnidirectional antenna is uniformly radiated by 360 degrees, and the directional antenna transmits or receives electromagnetic waves in a specific direction.
A system for discovering and countering WIFI signals of equipment is characterized in that after a signal scanning module scans signals of a discovered target WIFI route, local area network addresses of network equipment under the WIFI route are scanned, source local area network addresses and target local area network addresses are confirmed, and then terminal equipment under the WIFI route is classified;
the GPS module carries out positioning under the condition of wireless network signals, provides a coordinate system and sends positioning information to the main control module;
the wireless frequency band suppression module is used for suppressing the attack of a target WIFI route or an aiming signal of target terminal equipment, so that the target terminal equipment and the WIFI route cannot be normally connected;
the mobile communication module provides an uplink data channel;
the wireless module is used for data wireless coverage or wireless packet capturing, acquiring a link establishment handshake packet in a signal coverage range and storing the link establishment handshake packet in the data storage module;
the WIFI routing module performs dial-up networking by utilizing networks such as telecom 3G and Mobile 3G provided by the operator mobile communication module, and the wireless module provides wireless signals for the terminal equipment, so that the terminal equipment can realize data transmission, internet surfing and the like;
the data storage module is used for system operation and program and data storage and comprises a flash memory and an ram memory, the ram memory is used as a system operation place, and the flash memory is used for program and data storage;
the Ethernet module is used for providing an uplink data channel and a local management network port;
the main control module performs data control on data collected by the signal scanning module, the wireless frequency band suppression module, the WIFI routing module, the data storage module, the GPS module, the Ethernet module, the mobile communication module and the wireless module.
A method of discovery and countering of WIFI signals of a device, comprising the steps of:
the method comprises the following steps that (I) a signal scanning module is used for scanning network equipment and positioning the network equipment through a GPS module, the signal scanning module scans wireless signal names, local area network addresses and signal intensity of WIFI routes in a coverage area, equipment type distinguishing is conducted through control of a main control module, brands of terminal equipment under the WIFI routes are confirmed, connection relations between the routes and the terminal equipment are analyzed through relations between source local area network addresses and addresses of target local area networks, and related target routes are locked;
secondly, acquiring a secret key of the target equipment;
thirdly, a designated network protocol address and a local area network address are suppressed through a wireless frequency band suppression module, so that terminal equipment under target equipment is disconnected from an access point, and the designated frequency point and the terminal equipment under a network segment cannot be normally connected and communicated through suppression of the whole network segment;
and (IV) setting the wireless name and the wireless password of the WIFI routing module to be completely the same as those of the target WIFI routing for disguising, so that all wireless terminal equipment under the target WIFI routing are adsorbed on the WIFI routing module.
And fifthly, after the terminal equipment under the target WIFI route is connected to the network disguised by the WIFI route module, auditing network information generated by the connected terminal equipment so as to acquire all specific information, equipment types and internet surfing behaviors of criminals of the terminal equipment.
The invention has the beneficial effects that:
firstly, the invention blocks the normal connection of the target WIFI signal by WIFI signal discovery and adopting a penetration network access technology or a counter-control technology, and forges the routing equipment of the target WIFI through a wireless module, so that the terminal equipment under the target network adsorbs and forges the WIFI equipment to acquire the data information of the terminal equipment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a circuit block diagram of a WIFI signal discovery and countermeasure system.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.
The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A device for discovering and countering WIFI signals comprises a main control module, a signal scanning module, a wireless frequency band suppression module, a WIFI routing module, a data storage module, a GPS module, an Ethernet module, a mobile communication module, a wireless module and a power supply, wherein the main control module is respectively connected with the signal scanning module, the wireless frequency band suppression module, the WIFI routing module, the data storage module, the GPS module, the Ethernet module, the mobile communication module and the wireless module; the power supply is respectively communicated with the main control module, the signal scanning module, the wireless frequency band suppression module, the WIFI routing module, the data storage module, the GPS module, the Ethernet module, the mobile communication module and the wireless module.
Preferably, the signal scanning module comprises a directional antenna and an omnidirectional antenna, the omnidirectional antenna is 360-degree uniform radiation, and has the characteristics of no directivity and wide coverage range, the directional antenna has extremely strong capability in transmitting or receiving electromagnetic waves in a specific direction, but the directional antenna has extremely weak or even impossible reception capability in transmitting or receiving electromagnetic waves in other directions, and the signal scanning module has the effects of improving the effective utilization rate of radiation power, increasing information confidentiality, enhancing the anti-interference capability of signals and preventing coverage area through the mutual matching of the directional antenna and the omnidirectional antenna.
A system for discovering and countering WIFI signals of equipment is characterized in that after a signal scanning module scans signals of a discovered target WIFI route, local area network addresses of network equipment under the WIFI route are scanned, source local area network addresses and target local area network addresses are confirmed, and then terminal equipment under the WIFI route is classified;
the GPS module carries out positioning under the condition of wireless network signals, provides a coordinate system and sends positioning information to the main control module;
the wireless frequency band suppression module is used for suppressing the attack of a target WIFI route or an aiming signal of target terminal equipment, so that the target terminal equipment and the WIFI route cannot be normally connected;
the mobile communication module provides an uplink data channel;
the wireless module is used for data wireless coverage or wireless packet capturing, acquiring a link establishment handshake packet in a signal coverage range and storing the link establishment handshake packet in the data storage module;
the WIFI routing module performs dial-up networking by utilizing networks such as telecom 3G and Mobile 3G provided by the operator mobile communication module, and the wireless module provides wireless signals for the terminal equipment, so that the terminal equipment can realize data transmission, internet surfing and the like;
the data storage module is used for system operation and program and data storage and comprises a flash memory and an ram memory, the ram memory is used as a system operation place, and the flash memory is used for program and data storage;
the Ethernet module is used for providing an uplink data channel and a local management network port;
the main control module performs data control on data collected by the signal scanning module, the wireless frequency band suppression module, the WIFI routing module, the data storage module, the GPS module, the Ethernet module, the mobile communication module and the wireless module.
A method of discovery and countering of WIFI signals of a device, comprising the steps of:
the method comprises the following steps that (I) a signal scanning module is used for scanning network equipment and positioning the network equipment through a GPS module, the signal scanning module scans wireless signal names, local area network addresses and signal intensity of WIFI routes in a coverage area, equipment type distinguishing is conducted through control of a main control module, brands of terminal equipment under the WIFI routes are confirmed, connection relations between the routes and the terminal equipment are analyzed through relations between source local area network addresses and addresses of target local area networks, and related target routes are locked;
secondly, acquiring a secret key of the target equipment;
thirdly, a designated network protocol address and a local area network address are suppressed through a wireless frequency band suppression module, so that terminal equipment under target equipment is disconnected from an access point, and the designated frequency point and the terminal equipment under a network segment cannot be normally connected and communicated through suppression of the whole network segment;
setting a wireless name and a wireless password of the WIFI routing module to be completely the same as those of the target WIFI routing for disguising, so that all wireless terminal equipment under the target WIFI routing are adsorbed on the WIFI routing module;
and fifthly, after the terminal equipment under the target WIFI route is connected to the network disguised by the WIFI route module, auditing network information generated by the connected terminal equipment so as to acquire all specific information, equipment types and internet surfing behaviors of criminals of the terminal equipment.
Preferably, the WIFI password acquisition methods include the following methods:
known key is connected as follows: directly entering the next step when the service set identification and the WIFI password are known; the WIFI router can also be directly connected with the WIFI router, and the types of all wireless and wired devices with the link relation of the WIFI router can be obtained;
(II) connecting a master key tool: the device discovery and countercheck system based on the WIFI signal is preset with a WIFI key cracking tool (a master key), a cracked key is connected into the wireless access point, and the types of all wireless and wired devices which are in connection with the wireless access point can be obtained;
(III) cracking the key and connecting: the method comprises two steps, wherein the first step is to grab the handshake package, and the second step is to crack the secret key. The method for grabbing the handshake packet has two modes, namely: when the new terminal equipment is connected with the WIFI route, the WIFI route and the key equipment are authenticated, and at the moment, the handshake packet is captured; the second method comprises the following steps: attacking the terminal equipment by using an attack mode to drop the terminal equipment, authenticating the WIFI route and the terminal when the equipment reconnects the WIFI route, and capturing a handshake packet at the moment; there are two ways to obtain the key, one way is: local cracking, namely, after converting the format of the handshake packet file, cracking the handshake packet file in a password dictionary mode, wherein the dictionary source is a password acquired by universal actual combat collection and an intelligent password formed by an encryption habit; the second method comprises the following steps: remote cracking needs to lead out a handshake package from a background storage path in a USB mode, convert the format of a handshake package file and then transmit the handshake package file to a remote cracking platform, and crack the handshake package file in a mode of combining a password dictionary mode and a brute force cracking mode, wherein the brute force cracking mode refers to that full-space password inquiry is carried out within a certain bit width range under a certain character set rule.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. A device for discovering and countering WIFI signals is characterized by comprising a main control module, a signal scanning module, a wireless frequency band suppression module, a WIFI routing module, a data storage module, a GPS module, an Ethernet module, a mobile communication module, a wireless module and a power supply, wherein the main control module is respectively connected with the signal scanning module, the wireless frequency band suppression module, the WIFI routing module, the data storage module, the GPS module, the Ethernet module, the mobile communication module and the wireless module; the power supply is respectively communicated with the main control module, the signal scanning module, the wireless frequency band suppression module, the WIFI routing module, the data storage module, the GPS module, the Ethernet module, the mobile communication module and the wireless module.
2. The apparatus of claim 1, wherein the signal scanning module comprises a directional antenna and an omnidirectional antenna, the omnidirectional antenna is configured to radiate uniformly for 360 °, and the directional antenna transmits or receives electromagnetic waves in a specific direction.
3. A system for discovering and countering WIFI signals based on any one of the devices of claims 1-2, characterized in that after the signal scanning module scans signals of a discovered target WIFI route, it scans the local area network address of the network device under the WIFI route, confirms the source local area network address and the target local area network address, and then classifies the terminal devices under the WIFI route;
the GPS module carries out positioning under the condition of wireless network signals, provides a coordinate system and sends positioning information to the main control module;
the wireless frequency band suppression module is used for suppressing the attack of a target WIFI route or an aiming signal of target terminal equipment, so that the target terminal equipment and the WIFI route cannot be normally connected;
the mobile communication module provides an uplink data channel;
the wireless module is used for data wireless coverage or wireless packet capturing, acquiring a link establishment handshake packet in a signal coverage range and storing the link establishment handshake packet in the data storage module;
the WIFI routing module performs dial-up networking by utilizing networks such as telecom 3G and Mobile 3G provided by the operator mobile communication module, and the wireless module provides wireless signals for the terminal equipment, so that the terminal equipment can realize data transmission, internet surfing and the like;
the data storage module is used for system operation and program and data storage and comprises a flash memory and an ram memory, the ram memory is used as a system operation place, and the flash memory is used for program and data storage;
the Ethernet module is used for providing an uplink data channel and a local management network port;
the main control module performs data control on data collected by the signal scanning module, the wireless frequency band suppression module, the WIFI routing module, the data storage module, the GPS module, the Ethernet module, the mobile communication module and the wireless module.
4. A method for WIFI signal discovery and countering based on any one of the devices of claims 1-2, characterized by the steps of:
the method comprises the following steps that (I) a signal scanning module is used for scanning network equipment and positioning the network equipment through a GPS module, the signal scanning module scans wireless signal names, local area network addresses and signal intensity of WIFI routes in a coverage area, equipment type distinguishing is conducted through control of a main control module, brands of terminal equipment under the WIFI routes are confirmed, connection relations between the routes and the terminal equipment are analyzed through relations between source local area network addresses and addresses of target local area networks, and related target routes are locked;
secondly, acquiring a secret key of the target equipment;
thirdly, a designated network protocol address and a local area network address are suppressed through a wireless frequency band suppression module, so that terminal equipment under target equipment is disconnected from an access point, and the designated frequency point and the terminal equipment under a network segment cannot be normally connected and communicated through suppression of the whole network segment;
setting a wireless name and a wireless password of the WIFI routing module to be completely the same as those of the target WIFI routing for disguising, so that all wireless terminal equipment under the target WIFI routing are adsorbed on the WIFI routing module;
and fifthly, after the terminal equipment under the target WIFI route is connected to the network disguised by the WIFI route module, auditing network information generated by the connected terminal equipment so as to acquire all specific information, equipment types and internet surfing behaviors of criminals of the terminal equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910930333.7A CN110636490A (en) | 2019-09-29 | 2019-09-29 | WIFI signal discovery and countercheck equipment and system and method based on equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910930333.7A CN110636490A (en) | 2019-09-29 | 2019-09-29 | WIFI signal discovery and countercheck equipment and system and method based on equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110636490A true CN110636490A (en) | 2019-12-31 |
Family
ID=68973369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910930333.7A Withdrawn CN110636490A (en) | 2019-09-29 | 2019-09-29 | WIFI signal discovery and countercheck equipment and system and method based on equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110636490A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113055929A (en) * | 2021-02-26 | 2021-06-29 | 浙江大华技术股份有限公司 | Network hard disk video recorder and video transmission system |
-
2019
- 2019-09-29 CN CN201910930333.7A patent/CN110636490A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113055929A (en) * | 2021-02-26 | 2021-06-29 | 浙江大华技术股份有限公司 | Network hard disk video recorder and video transmission system |
| CN113055929B (en) * | 2021-02-26 | 2023-04-07 | 浙江大华技术股份有限公司 | Network hard disk video recorder and video transmission system under household wireless network |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8789191B2 (en) | Automated sniffer apparatus and method for monitoring computer systems for unauthorized access | |
| US7970894B1 (en) | Method and system for monitoring of wireless devices in local area computer networks | |
| US7316031B2 (en) | System and method for remotely monitoring wireless networks | |
| US7216365B2 (en) | Automated sniffer apparatus and method for wireless local area network security | |
| Lim et al. | Wireless intrusion detection and response | |
| US7496094B2 (en) | Method and system for allowing and preventing wireless devices to transmit wireless signals | |
| US20070183375A1 (en) | System and method for network integrity | |
| US20090016529A1 (en) | Method and system for prevention of unauthorized communication over 802.11w and related wireless protocols | |
| Raghuprasad et al. | Security analysis and prevention of attacks on IoT devices | |
| CN105681272A (en) | Method for detecting and defensing fishing WiFi of mobile terminal | |
| KR102323712B1 (en) | Wips sensor and method for preventing an intrusion of an illegal wireless terminal using wips sensor | |
| Wang et al. | Integration of SDR and UAS for malicious Wi-Fi hotspots detection | |
| Steinmetzer et al. | Beam-stealing: Intercepting the sector sweep to launch man-in-the-middle attacks on wireless IEEE 802.11 ad networks | |
| CN110730442A (en) | Camera equipment discovering and countering system and method based on wifi monitoring and controlling equipment | |
| US7333800B1 (en) | Method and system for scheduling of sensor functions for monitoring of wireless communication activity | |
| CN110636490A (en) | WIFI signal discovery and countercheck equipment and system and method based on equipment | |
| CN1826760A (en) | Wireless network security | |
| CN105792216A (en) | Wireless phishing access point detection method based on authentication | |
| Rupasinghe et al. | Physical layer security for UAV communications | |
| Issac et al. | The art of war driving and security threats-a Malaysian case study | |
| Patel et al. | Taxonomy and future threat of rogue access point for wireless network | |
| Patel et al. | Rogue Access Point: The WLAN Threat | |
| WO2015138971A1 (en) | Determining the precise geolocation of a wireless internet target | |
| Hasan et al. | Protecting Regular and Social Network Users in a Wireless Network by Detecting Rogue Access Point: Limitations and Countermeasures | |
| Pavithran et al. | Long-Range Stealth Mode Wi-Fi Surveillance and Interception System |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191231 |