CN208431517U - A kind of RF tag installation shell - Google Patents
A kind of RF tag installation shell Download PDFInfo
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- CN208431517U CN208431517U CN201821069032.7U CN201821069032U CN208431517U CN 208431517 U CN208431517 U CN 208431517U CN 201821069032 U CN201821069032 U CN 201821069032U CN 208431517 U CN208431517 U CN 208431517U
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- tag
- shell
- tooth button
- side wall
- holding tank
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Abstract
The utility model provides a kind of RF tag installation shell, and the installation shell includes the first shell and second housing, and first shell includes bottom and the side wall around the bottom, is formed with the holding tank of a receiving RF tag on said bottom；The first tooth button of multiple strips is provided on the outside of the side wall, the first tooth button extends from the bottom to the opening direction of the holding tank, and the length of the first tooth button is less than the length of the side wall；The second housing and first shell mutually fasten；The material of the installation shell is engineering plastics.RF tag, can be fixedly mounted in metal equipment by the installation shell of RF tag provided by the utility model, carry out tracing management to metal equipment.
Description
Technical field
The utility model relates to Radio Frequency Identification Technology, in particular to the installation shell of a kind of RF tag.
Background technique
In present each industrial production management, increasingly pay attention to the function of digitization and automation, such as metal die,
The use management of oil drill rocker, canister, metallic conduit.The management of metal die is to guarantee using correct suitable mould
Tool can guarantee to produce qualified product.Due to the difference of material kind, mixed proportion, output time etc., metal die
Quantity is often very huge, and the mistake of mold uses in order to prevent, it is necessary to carry out information management to mold.Make boring oil exploitation
In industry, considerable amount of drilling rod is used, and the management to oil drill rocker is primarily to record drilling rod quantity and using resume, monitoring
The service time and stress of drilling rod and relevant device.Canister, metallic conduit can be used to save, transport gas or liquid etc.
Substance is managed it, all records to substance, the transport destination etc. that use time, preservation or transport.
Radio RF recognition technology (Radio Frequency Identification, RFID) is one to be believed using radio frequency
Number realize that contactless information is passed through transmitted information and reaches identification by Space Coupling (alternating magnetic field or electromagnetic field)
The technology of purpose.Radio frequency identification is a kind of contactless automatic identification technology, it passes through radiofrequency signal automatic identification mesh
It marks object and obtains related data and be operable with various adverse circumstances without manual intervention.Use radio RF recognition technology pair
Above-mentioned metal die, oil drill rocker, canister, metallic conduit etc., which are managed, technically to be applied, still
There is also many places not fully up to expectations.
Such as the United States Patent (USP) that number of patent application is US13/010243, one metal is held using radio RF recognition technology
When device is managed, a groove 116 is formed on metallic containers, colloid 308 is set in the bottom of groove 116, by radio frequency
Label 104 is mounted in the groove 116.The problem of technology, is to install by colloid, and mounting stability is bad, severe
Use environment moves back and forth, and RF tag is very easy to fall off.For another example application No. is the China of CN200910202096
The installation part of RF tag is made into the shape that lower part is nail, the RFID with radio frequency recognition function in the nail cavity of top by patent
Label is mounted on by way of hammering into and is managed on object.Nail hammer into be managed object when, especially metallic object when,
To being managed, object body damage is bigger because nail on the one hand to be squeezed when hammering into be managed the internal structure of object can
It can crack, and nail is hammered into using the mode beaten, and cannot accurately be controlled direction, may be damaged and be managed object
The specific part of body.Application No. is the Chinese patents of CN201510733613, including a bolt, open in advance at the top of the nut of bolt
If one, for placing the groove of passive RFID tags, is partially installed on by the bolt of lower part and is managed on object.Use bolt
The scheme of installation needs to form screw thread in advance on being managed object, and which again increases management cost and complexity, reliabilities
It is poor, first, the threaded mounting hole of setting need twice technique, first aperture forms screw thread, second, screw bolt in hole again
Mounting means can slowly be separated under vibration.
To sum up, in use radio RF recognition technology to metal die, oil drill rocker, canister, metallic conduit etc.
In management, there is an urgent need to a kind of RF tag installation methods at low cost, easy to operate, safety is good.
Utility model content
In view of this, the present invention provides a kind of installation shells of RF tag, which is characterized in that the installation shell
Including the first shell and second housing, first shell includes bottom and the side wall around the bottom, on said bottom
It is formed with the holding tank of a receiving RF tag；It is provided with the first tooth button of multiple strips on the outside of the side wall, described first
Tooth button extends from the bottom to the opening direction of the holding tank, and the length of the first tooth button is less than the side wall
Length；The second housing and first shell mutually fasten；The material of the installation shell is engineering plastics.
Optionally, the bottom side is provided with a connection ring, the thickness of the connection ring and institute in the side wall
The consistency of thickness of the first tooth button is stated, and the connection ring is connected with the multiple first tooth button.
Optionally, the area ratio of the first tooth button and the side wall is less than or equal to 50%, is more than or equal to 30%.
Optionally, in the opening direction towards the holding tank, the first tooth fastener has a chamfering, the angle of the chamfering
Degree is 30 degree~45 degree.
Optionally, the shape of the bottom is round, oval, rectangular or special-shaped.
Optionally, it is provided with the second tooth button of multiple strips on the inside of the holding tank, the second tooth button is from the bottom
Portion extends to the opening direction of the holding tank.
Optionally, in the opening direction towards the holding tank, the second tooth fastener has a chamfering, the angle of the chamfering
Degree is 30 degree~45 degree.
Optionally, the material of the RF tag installation shell is polyether-ether-ketone.
Optionally, the second housing is together with first shell is by ultrasonic bonding connection.
RF tag installation shell provided by the utility model is at low cost, easy to operate, high reliability: the
One, the side wall length of RF tag installation shell is greater than the length of the first tooth button, and the sidewall sections of not set first tooth button can be with
It is placed in mounting hole, for being positioned to RF tag installation shell, in subsequent percussion, no longer needs to using hand-held
Or other positioning methods position RF tag installation shell, the installation direction of RF tag installation shell will not occur
Deviation；Second compares with bolt thread mounting means in the prior art, and the mounting hole in metal equipment to be formed because not needing
Screw thread saves operation and cost；The material that third, RF tag install shell is engineering plastics, is tapped into metal equipment
Metal equipment will not be damaged, the first tooth button can play the role of increasing friction, even if metal equipment makes because having elasticity
It frequently moves or vibrates in, RF tag installation shell will not fall off from metal equipment, have good safety
And reliability.
Detailed description of the invention
Fig. 1 is the schematic diagram that RF tag installs shell；
Fig. 2 is the schematic diagram of the bottom side for the first shell that RF tag installs shell；
Fig. 3 and Fig. 4 is that the RF tag of the utility model installs the schematic diagram that shell uses installation；
Fig. 5 is diagrammatic cross-section when second housing and the first shell do not fasten；
Fig. 6 is diagrammatic cross-section when second housing and the first shell mutually fasten；
Fig. 7 is in another embodiment, and RF tag installs the schematic diagram of shell；
Fig. 8 is the cross section structure schematic diagram for being the first tooth button；
Fig. 9 is the cross section structure schematic diagram of the second tooth button；
Figure 10 is the schematic diagram using metal equipment method for tracking and managing provided by the utility model.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to example set forth herein；On the contrary, thesing embodiments are provided so that the utility model will
More fully and completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.
In addition, described feature, structure or characteristic can be incorporated in one or more implementations in any suitable manner
In example.In the following description, many details are provided to provide and fully understand to the embodiments of the present invention.So
And it will be appreciated by persons skilled in the art that the technical solution of the utility model can be practiced without one in specific detail
Or more, or can be using other methods, constituent element, device, step etc..In other cases, it is not shown in detail or describes
Known method, device, realization or operation to avoid fuzzy the utility model various aspects.
Flow chart shown in the drawings is merely illustrative, it is not necessary to including all content and operation/step,
It is not required to execute by described sequence.For example, some operation/steps can also decompose, and some operation/steps can close
And or part merge, therefore the sequence actually executed is possible to change according to the actual situation.
Fig. 1 and Fig. 2 are please referred to, Fig. 1 is the schematic diagram that RF tag installs shell, and Fig. 2 is that RF tag installs shell
The schematic diagram of the bottom side of first shell.As shown in Figure 1, a kind of installation shell 100 of RF tag, the installation shell 100
Including the first shell 108 and second housing 109, the first shell 108 includes bottom 101 and the side wall 102 around bottom 101,
The holding tank 103 of a receiving RF tag is formed on bottom 101, in Fig. 1, the shape of holding tank 103 is circle, for putting
Set circular RF tag.The outside of the side wall 102 of first shell 108 is provided with the first tooth button 104 of multiple strips.First tooth
Button 104 extends from the bottom 101 of the first shell 108 to the opening direction of holding tank 103, and the length b of the first tooth button 104 is small
In the length a of side wall 102.The material that the RF tag installs shell 100 is engineering plastics.
Fig. 3 and Fig. 4 are please referred to, is that the RF tag of the utility model installs the schematic diagram that shell uses installation.It asks first
With reference to Fig. 3, in the RF tag installation shell using the utility model to metal die, oil drill rocker, metallic conduit or metal
When the metal equipment of the metal materials such as container is managed, a mounting hole is formed first in the metal equipment 200 being managed
201, which is round and smooth aperture, what the metal equipment 200 which can be and be managed was integrally formed,
It is also possible to after the metal equipment 200 being managed forms, passes through drill bit, cutter, milling cutter, lathe tool, laser, electric drill, punching
What first-class tool or mode were formed in the metal equipment 200 being managed.The size and installation shell 100 of the mounting hole 201
Dimensional fits, more specifically, the dimensional fits of the side wall 102 of the size of mounting hole 201 and installation shell 100.It is described
Dimensional fits mean that the depth of mounting hole 201 is equal to or slightly greater than the length of side wall 102, and the aperture of mounting hole 201 is equal to peace
Fill outer diameter of the shell 100 at side wall 102.
RF tag 202 is put into the holding tank 103 of the first shell 108 of installation shell 100, then by second housing
109 and first shell 108 mutually fasten, then the bottom of the first shell 108 is put into the mounting hole 201 of metal equipment 200 upwards
In.Referring to FIG. 4, the schematic diagram in mounting hole 201 is put into for installation shell 100, because of the size and mounting shell of mounting hole 201
The side wall 102 of the dimensional fits of the side wall 102 of body 100, not set first tooth button, 104 part can be placed just at mounting hole
In 201, the side wall 102 of 201 top of mounting hole is greater than the ruler of mounting hole 201 because being provided with the first tooth button 104, overall dimension
It is very little, hole 201 cannot be mounted and accommodated.
Then, using tapping tool, such as hammer etc., RF tag is installed into shell 100 to striking inside mounting hole 201
It hits, flushes the bottom surface 101 of the first shell 108 of RF tag installation shell 100 with the surface of metal equipment 200 or low
In the surface of metal equipment 200.It is engineering plastics that RF tag, which installs 100 material of shell, has certain elasticity, in the work of external force
Under, the first tooth button 104 is squeezed deformation, and RF tag installation shell 100 is able to be tapped into inside mounting hole 201.
After RF tag installation shell 100 is mounted good, the interior contact of the first tooth button 104 and mounting hole 201 and holding is extruded
State, be 102 region of side wall of not set tooth button between the first adjacent tooth button 104, side wall 102 is relative to mounting hole
201 inside forms a contoured rough contact surface, and stiction between the two can keep between the two opposite
Static, even if metal equipment has mobile, vibration in use, RF tag installs shell 100 will not be from metal equipment 200
It falls off in mounting hole 201, reliability is very good.
Preferably, the material for installing shell 100 is polyether-ether-ketone, has high temperature resistant, chemical resistance corrosion etc. physico
Performance is learned, the metal equipment harsh particularly suitable for management use environment.
Fig. 5 and Fig. 6 are please referred to, the schematic diagram mutually fastened for second housing and the first shell, Fig. 5 is second housing and the
Diagrammatic cross-section when one shell does not fasten, Fig. 6 are diagrammatic cross-section when second housing and the first shell mutually fasten.It is optional
Ground, in the present invention, second housing and the first shell can be mutually fastened and connected by way of ultrasonic bonding.Ultrasound
It is that the material surface that second housing and the first shell need to weld is transmitted to using high-frequency vibration wave that wave soldering, which connects, the case where pressurizeing
Under, make the mutual friction of material surface phase and form the fusion between molecular layer, makes material welding, to complete to weld.As shown,
It is set as step-like on the inside of first shell, 108 opening, second housing 109 and 108 junction of the first shell are also correspondingly arranged
To be step-like, and the step-like portion of the first shell 108 and the step-like portion of second housing 109 are mutually matched.By second
Shell 109 and the first shell 108 mutually fasten after placing, step-like to what is be mutually matched using ultrasonic bonding welding equipment
Part is pressurizeed, and the welding so that step-like portion pressurizes forms the weld portion 110 being mutually pasted together, thus by second housing
109 and first shell 108 be closely joined together.Certainly, second housing and the first shell can also connect by other means,
The utility model is not limited in ultrasonic bonding mode.
In Fig. 1 to Fig. 4 illustrated embodiment, the shape that RF tag installs shell is circle, in other embodiments,
It can also be other shapes that RF tag, which installs shell,.As shown in fig. 7, for the elongate in shape of cooperation RF tag 301, radio frequency mark
The shape of label installation shell 300 is substantially also strip, but it is round and smooth shape that its corner 302, which is arranged, is convenient for RF tag
The installation for installing shell 300 is provided with the first tooth button 304 on the side wall of RF tag installation shell 300.The size of mounting hole
With the dimensional fits of the side wall of installation shell, the side wall of length and width dimensions and RF tag the installation shell 300 of the size of mounting hole
Length and width dimensions it is consistent, and mounting hole also has round and smooth corner.But RF tag mounting shell provided by the utility model
The outer shape of body and the shape for being placed in RF tag therein do not have positive connection, and the shape that RF tag installs shell can
To be circle, rectangle, square or abnormity etc., the shape of the holding tank of RF tag is cooperated by equipment, can place and appoint
The RF tag of what shape.
RF tag provided by the utility model installs shell, by the way that the first tooth button is arranged on side wall, then using striking
RF tag installation shell is mounted in the mounting hole in metal equipment by the mode hit.RF tag provided by the utility model
Installing shell and its mounting means has at low cost, easy to operate, high reliability: the first, the length of side wall is greater than the
The length of one tooth button, the sidewall sections for being provided with the first tooth button can be placed in mounting hole, install shell to RF tag
It is positioned, in subsequent percussion, no longer needs to that RF tag is installed using the methods of hand-held or other positioning methods
Shell is positioned, and need to only be tapped to it, and the installation direction of RF tag installation shell will not deviate；Second and
Bolt thread mounting means in the prior art is compared, and the mounting hole in metal equipment to form screw thread because not needing, and saves behaviour
Work and cost；The material that third, RF tag install shell is engineering plastics, and metal will not be damaged by tapping into metal equipment
Equipment, the first tooth button because having elasticity, can play the role of increase friction, even if metal equipment frequently move in use or
Person's vibration, RF tag installation shell will not fall off from metal equipment, have good safety and reliability.
Fig. 1 and Fig. 2 are please referred to, in one embodiment, 101 side of bottom is provided with a connection in side wall 102
Ring 106, the consistency of thickness of the thickness of the connection ring 106 and the first tooth button 104, and connection ring 106 and multiple first tooth button
104 be interconnected.Because multiple first tooth buttons 104 are provided on the side wall 102 of the first shell 108, in RF tag
The shape that fluctuating is integrally presented on the side wall of shell 100 is installed, will form gap between the first adjacent tooth button 104.?
Connection ring 106 is arranged close to 101 side of bottom in the side wall 102 of one shell 108, when RF tag installation shell 100 is mounted on gold
When belonging in equipment, bottom 101 is towards the lateral direction of mounting hole, and connection ring 106 is to the first tooth button 104 and the first adjacent tooth button
Gap between 104 is blocked, so that the bottom 101 of RF tag installation shell 100 is with outer portion and metal equipment
Mounting hole and external isolation, avoid the foreign matters such as steam or dust from entering inside mounting hole, influence RF tag installation shell 100,
The use or reliability of RF tag or metal equipment.
Fig. 1 and Fig. 2 are please referred to, in one embodiment, the area ratio of the first tooth button 104 and side wall 102 is less than or equal to
50%, it is more than or equal to 30%, i.e. the density of setting of the first tooth button 104 is less than or equal to 50%, is more than or equal to 30%.If in side wall
First tooth button 104 of 102 settings is less, forms the shape for rising and falling concave-convex without enough first tooth buttons 104 and provides foot
Enough stiction, radio frequency installation label might have the risk to fall off out of mounting hole；If the density of setting of the first tooth button 104
It is too big, bigger external force is needed again during installation, increases installation difficulty.It sets the density of setting of the first tooth button 104 to
Less than or equal to 50%, it is more than or equal to 30%, it is ensured that the stability of installation and the convenience of operation.
Fig. 1, Fig. 2 and Fig. 8 are please referred to, Fig. 8 is the cross section structure schematic diagram of the first tooth button, in one embodiment,
Towards the opening direction of holding tank 103, the first tooth button 104 has a chamfering α, and the angular range of chamfering α is at 30 degree~45 degree
Between.When the bottom 101 of RF tag installation shell is placed in the mounting hole of metal equipment upwards, 104 meeting of the first tooth button
It is stuck in the outside of mounting hole, needs that RF tag installation shell 100 is fully mounted in mounting hole using external force percussion.?
Chamfering α is set on one tooth button 104, the first tooth button 104 towards the side of mounting hole be an inclined-plane, when by external force, the
The inclined-plane of one tooth button 104 can be easier to mounting hole internal motion, to guarantee the flatness and convenience of installation.
Fig. 1, Fig. 2 and Fig. 9 are please referred to, Fig. 9 is the schematic diagram of the second tooth button, in one embodiment, RF tag peace
In the holding tank for filling shell 100, inside is provided with the second tooth button 105 of multiple strips, the second tooth button 105 of multiple strip
Extend from the bottom of holding tank 103 to the opening direction of holding tank 103.In the opening direction towards holding tank 103, multiple
Two tooth buttons 105 have a undercut ss, and the angle of the undercut ss is 30 degree~45 degree.The effect of second tooth button 105 is by RF tag
It is fixed in holding tank 103, when RF tag is installed from the opening direction of holding tank 103 to 103 bottom direction of holding tank, because
For the second tooth button 105 have undercut ss, the second tooth button 105 and RF tag contact face be an inclined-plane, can facilitate RF tag to
Lower slider is to the bottom of holding tank 103.Also, from 103 bottom direction of holding tank to the opening direction of holding tank 103, because
Two tooth buttons 105 have undercut ss, and the second tooth button 105 is greater than close to the width of 103 bottom direction of holding tank to be pushed up close to holding tank 103
The width in portion direction, RF tag are mounted to be engaged behind 103 bottom of holding tank and fix, will not be detached from from holding tank 103
Out, easy to operate, installation is firm.
Referring to FIG. 10, the schematic diagram of the method for tracking and managing for metal equipment provided by the embodiment of the utility model, such as
Shown in figure, including a metal equipment 300, mounting hole 301 is provided in the metal equipment 300.It is provided in the mounting hole 301
Above-mentioned RF tag installs shell 100, which installs the bottom of shell 100 towards the table of the metal equipment 300
Face side, and it is provided with a RF tag in the holding tank of RF tag installation shell 300, which includes the gold
Belong to the number information of equipment 300.One RF tag signal-obtaining equipment 302, RF tag signal-obtaining equipment 302 read metal
The number information of RF tag in equipment 300 is identified and is managed to metal equipment 300, can record metal equipment 300
Using resume, to monitor the parameters such as the access times of metal equipment, service life.The radio frequency label information reads equipment 302
It can be hand-held and read equipment, be also possible to flat reading equipment.RF tag signal-obtaining equipment 302 can will be read
To the number signal of RF tag upload and store to database, also can store in RF tag signal-obtaining equipment 302
Inside.
The metal equipment 300 can be metal die, oil drill rocker, metallic conduit or canister etc., these equipment
Use environment it is severe, have mobile or vibration in use, using management method provided by the utility model, by RF tag
Shell is installed by RF tag to be mounted in metal equipment, fix stably is not easily to fall off.Read the radio frequency mark in metal equipment
The number signal of label is contactless reading, can be read at a distance, information history data management, and equipment or data are being read
Metal equipment can be set in library uses monitoring and reminding, makes such as more than service life, not according to pre-provisioning request or purposes
With monitoring and remindings such as the metal equipments, the efficiency for using and managing is improved.
RF tag installation shell provided by the utility model has at low cost, easy to operate, high reliability, can
To improve the efficiency that metal equipment is used and managed.
This application is intended to cover any variations, uses, or adaptations of the utility model, these modifications, purposes or
Person's adaptive change follows the general principle of the utility model and undocumented in the art including the utility model
Common knowledge or conventional techniques.The description and examples are only to be considered as illustrative, the true scope of the utility model and
Spirit is indicated by the following claims.It should be understood that the utility model is not limited to be described above and attached
Precision architecture shown in figure, and various modifications and changes may be made without departing from the scope thereof.The scope of the utility model
Only it is limited by the accompanying claims.
Claims (9)
1. a kind of RF tag installs shell, which is characterized in that the installation shell includes the first shell and second housing, described
First shell includes bottom and the side wall around the bottom, is formed with the receiving of a receiving RF tag on said bottom
Slot；It is provided with the first tooth button of multiple strips on the outside of the side wall, the first tooth button is from the bottom to the holding tank
Opening direction extend, and the length of the first tooth button be less than the side wall length；The second housing and described
One shell mutually fastens；The material of the installation shell is engineering plastics.
2. RF tag as described in claim 1 installs shell, which is characterized in that in the side wall close to the bottom side
It is provided with a connection ring, the consistency of thickness of the thickness of the connection ring and the first tooth button, and the connection ring and described
Multiple first tooth button connections.
3. RF tag as described in claim 1 installs shell, which is characterized in that the face of the first tooth button and the side wall
Product is more than or equal to 30% than being less than or equal to 50%.
4. RF tag as described in claim 1 installs shell, which is characterized in that in the opening side towards the holding tank
To the first tooth fastener has a chamfering, and the angle of the chamfering is 30 degree~45 degree.
5. RF tag as described in claim 1 installs shell, which is characterized in that the shape of the bottom is round, oval
It is shape, rectangular or special-shaped.
6. RF tag as described in claim 1 installs shell, which is characterized in that be provided on the inside of the holding tank multiple
Second tooth button of strip, the second tooth button extend from the bottom to the opening direction of the holding tank.
7. RF tag as claimed in claim 6 installs shell, which is characterized in that in the opening side towards the holding tank
To the second tooth fastener has a chamfering, and the angle of the chamfering is 30 degree~45 degree.
8. RF tag as described in claim 1 installs shell, which is characterized in that the material of the RF tag installation shell
It is polyether-ether-ketone.
9. RF tag as described in claim 1 installs shell, which is characterized in that the second housing and first shell
Together by ultrasonic bonding connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821069032.7U CN208431517U (en) | 2018-07-06 | 2018-07-06 | A kind of RF tag installation shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821069032.7U CN208431517U (en) | 2018-07-06 | 2018-07-06 | A kind of RF tag installation shell |
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| Publication Number | Publication Date |
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| CN208431517U true CN208431517U (en) | 2019-01-25 |
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| CN201821069032.7U Active CN208431517U (en) | 2018-07-06 | 2018-07-06 | A kind of RF tag installation shell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916537A (en) * | 2018-07-06 | 2018-11-30 | 上海数斐信息科技有限公司 | A kind of RF tag installation shell and installation method |
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2018
- 2018-07-06 CN CN201821069032.7U patent/CN208431517U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916537A (en) * | 2018-07-06 | 2018-11-30 | 上海数斐信息科技有限公司 | A kind of RF tag installation shell and installation method |
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Effective date of registration: 20201105 Address after: 226010 east side of the fourth floor of building 4, No.9, Xindong Road, Nantong Economic and Technological Development Zone, Jiangsu Province Patentee after: Saifei Information Technology (Nantong) Co.,Ltd. Address before: 200336 21 21 Tianshan Road, Changning District, Shanghai (Room 403, building 3) Patentee before: Shanghai Yaochuan Information Technology Co.,Ltd. |
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