CN106741956A - A kind of multi-rotor aerocraft of line powered and application thereof - Google Patents
A kind of multi-rotor aerocraft of line powered and application thereof Download PDFInfo
- Publication number
- CN106741956A CN106741956A CN201710139344.4A CN201710139344A CN106741956A CN 106741956 A CN106741956 A CN 106741956A CN 201710139344 A CN201710139344 A CN 201710139344A CN 106741956 A CN106741956 A CN 106741956A
- Authority
- CN
- China
- Prior art keywords
- wing aircraft
- rotor aerocraft
- fixed wing
- electric wire
- aircraft
- 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- Withdrawn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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D5/00—Aircraft transported by aircraft, e.g. for release or reberthing during flight
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C27/00—Rotorcraft; Rotors peculiar thereto
- B64C27/04—Helicopters
- B64C27/08—Helicopters with two or more rotors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D27/00—Arrangement or mounting of power plant in aircraft; Aircraft characterised thereby
- B64D27/02—Aircraft characterised by the type or position of power plant
- B64D27/24—Aircraft characterised by the type or position of power plant using steam, electricity, or spring force
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course or altitude of land, water, air, or space vehicles, e.g. automatic pilot
- G05D1/12—Target-seeking control
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
Abstract
A kind of multi-rotor aerocraft of line powered and application thereof, belongs to technical field of aerospace, more particularly to a kind of combined type aircraft.Including fixed wing aircraft, multi-rotor aerocraft and floor power supply device;Fixed wing aircraft is similar to the fixed wing aircraft structure of routine, also has a connection end on fixed wing aircraft;Multi-rotor aerocraft includes body, attachment means, radar detection device and electric power source distribution device;Floor power supply device includes controller, electric wire distributor and electric wire;Electric wire one end is fixedly connected on electric power source distribution device, and other end connection power supply is simultaneously wound on electric wire distributor, and electric wire is that multi-rotor aerocraft transmits power supply;Multi-rotor aerocraft is flown in the air with electric wire, and attachment means engagement connection end makes multi-rotor aerocraft and fixed wing aircraft connection combination, and support is carried or meets fixed wing aircraft.The present invention, with for multi-rotor aerocraft provides power supply, is combined, for the landing of fixed wing aircraft provides new departure using multi-rotor aerocraft by electric wire with fixed wing aircraft.
Description
Technical field
A kind of multi-rotor aerocraft of line powered and application thereof, belongs to technical field of aerospace, more particularly to line powered
Multi-rotor aerocraft and application thereof.
Background technology
Traditional fixed wing aircraft will slide landing when landing by runway, cannot smoothly be dropped in the narrow and small place of landform
Fall;Multi-rotor aerocraft can realize VTOL, but multi-rotor aerocraft generally needs carry high capacity cell to be powered,
The timing of payload one, battery can increased dead load of taking off, and reduce payload and cruising time.
The content of the invention
The purpose of the present invention is the above-mentioned deficiency for overcoming traditional multi-rotor aerocraft and fixed wing aircraft, can be according to many rotations
The low shortcoming of rotor aircraft endurance, is connected by electric wire with floor power supply device, for multi-rotor aerocraft is provided in a steady stream not
Disconnected power supply;Combined with fixed wing aircraft using multi-rotor aerocraft simultaneously, for the landing mode of fixed wing aircraft provides new side
Case.
A kind of multi-rotor aerocraft of line powered and application thereof, including fixed wing aircraft, multi-rotor aerocraft and ground
Electric supply installation;There is a connection end on the fixed wing aircraft, signal reflex device is housed on connection end.Many rotors fly
Row device includes body, attachment means, radar detection device and electric power source distribution device;The body include power set, control system,
Bracing strut and halfpace;The attachment means are located at body halfpace top, and effect is the connection for engaging fixed wing aircraft
End;The radar detection device is connected with the control system of multi-rotor aerocraft, can send signal detection fixed wing aircraft
Heading, speed, height and distance, feed back to multi-rotor aerocraft and are adjusted to corresponding heading, height and speed, together
When detection connection end position data, followed the trail of in order to multi-rotor aerocraft and be connected wing aircraft;The electric power source distribution device with
The electric wire of floor power supply device is connected, the power supply needed for distribution each electrical equipment of multi-rotor aerocraft.The floor power supply device
Including controller, electric wire distributor and electric wire;The controller and the control system wireless connection of multi-rotor aerocraft, receive control
The instruction of system processed, controls electric wire distributor folding and unfolding electric wire;The electric wire distributor is connected with controller, can be received according to instruction
Electric wire is returned or released, is easy to being flown in the air with electric wire for multi-rotor aerocraft;Described electric wire one end is fixedly connected on power supply
Distributor, other end connection power supply is simultaneously wound on electric wire distributor, and electric wire is that multi-rotor aerocraft transmits power supply.Work as fixed-wing
When aircraft needs landing, by the airborne communication control of fixed wing aircraft, earthward base station transmission needs landing information and flies to base
Stand, ground base station receive information simultaneously sends instruction to multi-rotor aerocraft;Multi-rotor aerocraft goes up to the air immediately, controller control electricity
Line distributor releases electric wire, while radar detection device sends signal, detects heading, speed, the height of fixed wing aircraft
And distance, multi-rotor aerocraft adjusts itself direction, speed and height according to feedback signal;Multi-rotor aerocraft flies to fixed-wing
The positive front lower place in aircraft flight direction waits, and controller control electric wire distributor stops unwrapping wire;Wing aircraft to be fixed and many rotors
Aircraft it is closely located after, multi-rotor aerocraft flight forward together with fixed wing aircraft, the control system of multi-rotor aerocraft
System calculates the position of fixed wing aircraft connection end according to the data of radar detection device, at the same adjust itself flying speed and
Posture, multi-rotor aerocraft gradually upwards near fixed wing aircraft, makes attachment means be engaged with the connection end of fixed wing aircraft,
The pushing meanss of fixed wing aircraft are stopped working, and multi-rotor aerocraft support carries the fixed wing aircraft segment distance of flight forward one together, disappears
Subtract the flight inertia of fixed wing aircraft, multi-rotor aerocraft support carries fixed wing aircraft return, controller control electric wire distributor
Withdraw electric wire;When fixed wing aircraft needs to take off, by the airborne communication control of fixed wing aircraft, earthward base station transmission is needed
Departure information is wanted, ground base station receive information simultaneously sends instruction to multi-rotor aerocraft, and multi-rotor aerocraft starts power set
Support carries fixed wing aircraft lift-off, while controller control electric wire distributor releases electric wire;After certain altitude is raised to, fixed-wing
Aircraft starts engine, and multi-rotor aerocraft support carries fixed wing aircraft and accelerates flight forward, when the speed of fixed wing aircraft reaches
After to needed for taking off, attachment means are separated with connection end, and fixed wing aircraft is separated with multi-rotor aerocraft, and fixed wing aircraft continues
Flight, multi-rotor aerocraft is returned, while controller control electric wire distributor withdraws electric wire.
The connection end is located across the belly lower section of fixed wing aircraft center of gravity perpendicular.
Being rigidly connected between the attachment means and connection end connected using electromagnetic type or using mechanical connection.
The electric wire crosses silver metal material using plasticity.
The engine of the power set of the multi-rotor aerocraft uses high-tension electric motor.
The present invention can be connected by electric wire according to the low shortcoming of multi-rotor aerocraft endurance with floor power supply device,
For multi-rotor aerocraft provides source continuous power supply;The advantage that can be vertically moved up or down using multi-rotor aerocraft simultaneously, using many
Rotor craft is combined with fixed wing aircraft, for the landing of fixed wing aircraft provides new departure, fixed wing aircraft can also put down
Land on platform, reduce the construction of runway needed for fixed wing aircraft, be conducive to the popularization of fixed wing aircraft.
Brief description of the drawings
Fig. 1 is multi-rotor aerocraft and floor power supply device structural representation;Fig. 2 is fixed wing aircraft structural representation;
Fig. 3 is multi-rotor aerocraft and fixed wing aircraft combination diagram.
In figure, 1- fixed wing aircrafts, 11- connection ends, 12- signal reflex devices, 2- multi-rotor aerocrafts, 21- bodies,
22- radar detection devices, 23- attachment means, 24- electric power source distribution devices, 3- floor power supply devices, 31- controllers, 32- electric wires are received
Put device, 33- electric wires.
Specific embodiment
The present invention is illustrated below in conjunction with the accompanying drawings:A kind of multi-rotor aerocraft of line powered and application thereof, bag
Include fixed wing aircraft 1, multi-rotor aerocraft 2 and floor power supply device 3;Fixed wing aircraft and conventional fixed wing aircraft structure phase
Seemingly, there is a connection end 11 on fixed wing aircraft;Connection end 11 is located under the belly of the center of gravity extended line of fixed wing aircraft 1
Side, is equipped with signal reflex device 12 on connection end 11;Multi-rotor aerocraft 2 includes body 21, attachment means 22, detections of radar
Device 23 and electric power source distribution device 24;Body 21 includes power set, control system, bracing strut, halfpace;Attachment means 22
In the halfpace of body 21 top, effect is the connection end 11 for engaging fixed wing aircraft 1;Between attachment means 22 and connection end 21
Be rigidly connected using electromagnetic type connection;Radar detection device 23 is connected with the control system of multi-rotor aerocraft 2, can send
The course line of signal detection fixed wing aircraft 1, speed, height and distance, feedback multi-rotor aerocraft 2 be adjusted to corresponding course line,
Height and speed, while the position data of connection end 11 is detected, so that multi-rotor aerocraft 2 follows the trail of the wing aircraft 1 that is connected;Electricity
Source distributor 24 is connected with floor power supply device 3 by electric wire 33, needed for each electrical equipment flight of distribution multi-rotor aerocraft 2
Power supply.Floor power supply device 3 includes controller 31, electric wire distributor 32 and electric wire 33;Controller 31 and multi-rotor aerocraft 2
Control system wireless connection, receives the instruction of control system, the folding and unfolding electric wire 33 of control electric wire distributor 32, in order to be sky
Many rotation aircraft 2 of middle flight are powered.Electric wire distributor 32 is connected with controller 31, can be withdrawn according to instruction or releasing electric wire
33, it is easy to multi-rotor aerocraft 2 to be flown in the air with electric wire 33;The one end of electric wire 33 is fixedly connected electric power source distribution device 24, another
End connection is wound on electric wire distributor 32, and electric wire 33 is that multi-rotor aerocraft 2 transmits power supply, and electric wire 33 crosses silver using plasticity
Metal material.When fixed wing aircraft 1 needs landing, by the airborne communication control of fixed wing aircraft 1, earthward base station sends
Need landing information and fly to base station, ground base station receive information simultaneously sends instruction to multi-rotor aerocraft 2;Multi-rotor aerocraft
2 go up to the air immediately, and the control electric wire of controller 31 distributor 32 releases electric wire 33, while radar detection device 23 sends signal, detection
The heading of fixed wing aircraft 1, speed, height and distance, multi-rotor aerocraft 2 according to feedback signal adjust itself direction,
Speed and height;The positive front lower place that multi-rotor aerocraft 2 flies to the heading of fixed wing aircraft 1 waits, and controller 31 controls electricity
Line distributor 32 stops unwrapping wire;Wing aircraft to be fixed 1 and multi-rotor aerocraft 2 it is closely located after, multi-rotor aerocraft 2 with it is solid
Determine the flight forward together of wing aircraft 1, the control system of multi-rotor aerocraft 2 calculates fixation according to the data of radar detection device
The position of wing aircraft connection end, while adjusting itself flying speed and posture, multi-rotor aerocraft 2 is gradually upwards near fixation
Wing aircraft 1, makes attachment means 22 be engaged with the connection end 11 of fixed wing aircraft 1, and the pushing meanss of fixed wing aircraft 1 are stopped working,
The support of multi-rotor aerocraft 2 carries the segment distance of flight forward one together of fixed wing aircraft 1, cuts down the flight inertia of fixed wing aircraft 1,
The support of multi-rotor aerocraft 2 carries fixed wing aircraft 1 and returns, and the control electric wire of controller 31 distributor 32 withdraws electric wire 33;Work as fixation
When wing aircraft 1 needs to take off, by the airborne communication control of fixed wing aircraft 1, earthward base station transmission needs departure information, ground
Face base station receive information simultaneously sends instruction to multi-rotor aerocraft 2, and multi-rotor aerocraft 2 starts power set support and carries fixed-wing
Aircraft 1 goes up to the air, while the control electric wire of controller 31 distributor 32 releases electric wire 33;After certain altitude is raised to, fixed wing aircraft 1
Start engine, the support of multi-rotor aerocraft 2 carries fixed wing aircraft 1 and accelerates flight forward, when the speed of fixed wing aircraft 1 reaches
After needed for taking off, attachment means 22 are separated with connection end 21, and fixed wing aircraft 1 is separated with multi-rotor aerocraft 2, fixed wing aircraft
1 continues to fly, and multi-rotor aerocraft is returned and parked a little, while the control electric wire of controller 31 distributor 32 withdraws electric wire 33.
Claims (6)
1. a kind of multi-rotor aerocraft of line powered, it is characterised in that:Including fixed wing aircraft(1), multi-rotor aerocraft(2)
And floor power supply device(3);Fixed wing aircraft(1)It is upper to also have connection end(11), in connection end(11)On equipped with signal reflex dress
Put(12);Multi-rotor aerocraft(2)Including body(21), attachment means(22), radar detection device(23)And electric power source distribution device
(24);Body(21)Including power set, control system, bracing strut and halfpace;Attachment means(22)Positioned at body(21)
Halfpace top;Radar detection device(23)With multi-rotor aerocraft(2)Control system be connected;Electric power source distribution device(24)With
Floor power supply device(3)By electric wire(33)It is connected;Floor power supply device(3)Including controller(31), electric wire distributor(32)
And electric wire(33);Electric wire distributor(32)With controller(31)It is connected;Electric wire(33)One end is fixedly connected electric power source distribution device(24),
Other end connection is wound into electric wire distributor(32)On.
2. the multi-rotor aerocraft of a kind of line powered according to claim 1, it is characterised in that:The electric wire(33)Adopt
Silver metal material is crossed with plasticity.
3. the multi-rotor aerocraft of a kind of line powered according to claim 1 and 2, it is characterised in that:Fixed wing aircraft
(1)And multi-rotor aerocraft(2)During connection combination, fixed wing aircraft(1)In multi-rotor aerocraft(2)Top.
4. the multi-rotor aerocraft of a kind of line powered according to claim 1 and 2, it is characterised in that:The connection dress
Put(22)With connection end(21)Between be rigidly connected and connected using electromagnetic type or using mechanical connection.
5. the multi-rotor aerocraft of a kind of line powered according to claim 1 and 2, it is characterised in that:Many rotors are stated to fly
Row device(2)The engine of power set use high-tension electric motor.
6. a kind of multi-rotor aerocraft purposes of line powered, is any one line powered according to claim 1 ~ 5
Multi-rotor aerocraft come what is realized, work as fixed wing aircraft(1)When needing landing, by fixed wing aircraft(1)Airborne communication
Earthward base station sends and needs landing information and fly to base station equipment, ground base station receive information and to multi-rotor aerocraft(2)
Send instruction;Multi-rotor aerocraft(2)Go up to the air immediately, controller(31)Control electric wire distributor(32)Release electric wire(33), together
When radar detection device(23)Signal is sent, fixed wing aircraft is detected(1)Heading, speed, height and distance, many rotors
Aircraft(2)Itself direction, speed and height are adjusted according to feedback signal;Multi-rotor aerocraft(2)Fly to fixed wing aircraft(1)
The positive front lower place of heading waits, controller(31)Control electric wire distributor(32)Stop unwrapping wire;Wing aircraft to be fixed(1)With
Multi-rotor aerocraft(2)It is closely located after, multi-rotor aerocraft(2)With fixed wing aircraft(1)Flight forward, many rotors together
Aircraft(2)Control system calculate fixed wing aircraft according to the data of radar detection device(1)Connection end(11)Position,
Adjust the flying speed and posture of itself, multi-rotor aerocraft simultaneously(2)Gradually upwards near fixed wing aircraft(1), make connection
Device(22)With fixed wing aircraft(1)Connection end(11)Engage, fixed wing aircraft(1)Pushing meanss stop working, many rotors
Aircraft(2)Support carries fixed wing aircraft(1)The segment distance of flight forward one, cuts down fixed wing aircraft together(1)Flight inertia,
Multi-rotor aerocraft(2)Support carries fixed wing aircraft(1)Return, controller(31)Control electric wire distributor(32)Withdraw electric wire
(33);Work as fixed wing aircraft(1)When needing to take off, by fixed wing aircraft(1)Airborne communication control earthward base station send
Need departure information, ground base station receive information and to multi-rotor aerocraft(2)Send instruction, multi-rotor aerocraft(2)Start
Power set support carries fixed wing aircraft(1)Lift-off, while controller(31)Control electric wire distributor(32)Release electric wire(33);
After certain altitude is raised to, fixed wing aircraft(1)Start engine, multi-rotor aerocraft(2)Support carries fixed wing aircraft(1)Plus
Fast flight forward, works as fixed wing aircraft(1)Speed reach take off needed for after, attachment means(22)With connection end(21)Separate,
Fixed wing aircraft(1)With multi-rotor aerocraft(2)Separate, fixed wing aircraft(1)Continue to fly, multi-rotor aerocraft(2)Return
Park a little, while controller(31)Control electric wire distributor(32)Withdraw electric wire(33).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710139344.4A CN106741956A (en) | 2017-03-10 | 2017-03-10 | A kind of multi-rotor aerocraft of line powered and application thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710139344.4A CN106741956A (en) | 2017-03-10 | 2017-03-10 | A kind of multi-rotor aerocraft of line powered and application thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
CN106741956A true CN106741956A (en) | 2017-05-31 |
Family
ID=58961966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710139344.4A Withdrawn CN106741956A (en) | 2017-03-10 | 2017-03-10 | A kind of multi-rotor aerocraft of line powered and application thereof |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN106741956A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107499522A (en) * | 2017-09-21 | 2017-12-22 | 江苏蒲公英无人机有限公司 | A kind of umbilical VTOL fixed-wing UAS |
CN108820221A (en) * | 2018-08-16 | 2018-11-16 | 上海重塑能源科技有限公司 | Take-off system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105083578A (en) * | 2014-05-09 | 2015-11-25 | 赖羿宇 | Flight airdrome |
CN205945056U (en) * | 2016-07-19 | 2017-02-08 | 深圳光启空间技术有限公司 | Unmanned aerial vehicle's power supply system and unmanned aerial vehicle |
US20170036762A1 (en) * | 2015-08-03 | 2017-02-09 | Dustin Gamble | Release and Capture of a Fixed-Wing Aircraft |
CN206537515U (en) * | 2017-03-10 | 2017-10-03 | 佛山市神风航空科技有限公司 | A kind of multi-rotor aerocraft of line powered |
-
2017
- 2017-03-10 CN CN201710139344.4A patent/CN106741956A/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105083578A (en) * | 2014-05-09 | 2015-11-25 | 赖羿宇 | Flight airdrome |
US20170036762A1 (en) * | 2015-08-03 | 2017-02-09 | Dustin Gamble | Release and Capture of a Fixed-Wing Aircraft |
CN205945056U (en) * | 2016-07-19 | 2017-02-08 | 深圳光启空间技术有限公司 | Unmanned aerial vehicle's power supply system and unmanned aerial vehicle |
CN206537515U (en) * | 2017-03-10 | 2017-10-03 | 佛山市神风航空科技有限公司 | A kind of multi-rotor aerocraft of line powered |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107499522A (en) * | 2017-09-21 | 2017-12-22 | 江苏蒲公英无人机有限公司 | A kind of umbilical VTOL fixed-wing UAS |
CN108820221A (en) * | 2018-08-16 | 2018-11-16 | 上海重塑能源科技有限公司 | Take-off system |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP3127809B1 (en) | Release and capture of a fixed-wing aircraft | |
US9815563B2 (en) | Long range electric aircraft and method of operating same | |
KR102600068B1 (en) | Systems and Methods for Powering an Electric Aerial Vehicle | |
CN205168905U (en) | Stationary vane aerial survey unmanned aerial vehicle | |
CN201494622U (en) | Wired electric flying and floating aircraft | |
CN106741958A (en) | One kind combination aerocraft system and its working method | |
US10246185B2 (en) | Aircraft system and method for vertical takeoff and landing | |
CN107512394A (en) | A kind of tail sitting posture VUAV and flight control method | |
CN106741954A (en) | The landing-gear and its mode of a kind of aircraft | |
CN106741956A (en) | A kind of multi-rotor aerocraft of line powered and application thereof | |
CN205239908U (en) | Fixed tilt angle rotor craft | |
CN202879795U (en) | Multipurpose unmanned plane with flexible ram-type parawings | |
CN106915463A (en) | Take off mode and the device of a kind of aircraft | |
CN204489187U (en) | A kind of vertical takeoff and landing horizontal flight unmanned plane | |
CN105235906A (en) | Unmanned aerial vehicle with stay wire structure and application method thereof | |
CN106915441B (en) | A kind of combined type aircraft lifting gear and mode | |
CN106915453A (en) | A kind of takeoff and landing mode and system | |
CN209479989U (en) | A kind of unmanned plane and the wireless power supply system based on unmanned plane | |
CN106005371B (en) | Difference directly drives dynamic three rudder face unmanned planes entirely | |
CN206537515U (en) | A kind of multi-rotor aerocraft of line powered | |
CN206885351U (en) | A kind of takeoff and landing system | |
CN212313298U (en) | Small-sized solar unmanned aerial vehicle | |
CN206537516U (en) | A kind of launching apparatus of aircraft | |
CN106965934A (en) | The landing modes and device of a kind of aircraft | |
CN206691363U (en) | A kind of delta-wing aircraft of energy VTOL |
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: 20170531 |