CN111479399B - Printing device for processing printed circuit board of 5G coupler - Google Patents
Printing device for processing printed circuit board of 5G coupler Download PDFInfo
- Publication number
- CN111479399B CN111479399B CN202010408569.7A CN202010408569A CN111479399B CN 111479399 B CN111479399 B CN 111479399B CN 202010408569 A CN202010408569 A CN 202010408569A CN 111479399 B CN111479399 B CN 111479399B
- Authority
- CN
- China
- Prior art keywords
- printing
- printing screen
- groove
- coupler
- circuit board
- 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.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/12—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns
- H05K3/1216—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns by screen printing or stencil printing
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/10—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern
- H05K3/12—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns
- H05K3/1216—Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using thick film techniques, e.g. printing techniques to apply the conductive material or similar techniques for applying conductive paste or ink patterns by screen printing or stencil printing
- H05K3/1225—Screens or stencils; Holders therefor
Abstract
The invention belongs to the technical field of communication processing, and particularly relates to a printing device for processing a printed circuit board of a 5G coupler, which comprises a base, wherein a conveying seat is fixed at the top of the base, a liftable printing screen plate is arranged at the top of the conveying seat, a printing screen is fixed at the bottom of the printing screen plate, a matched stamping mechanism is arranged at the top of the printing screen, printing slurry is placed at the top of the printing screen, a placing groove is formed in the top of the printing screen plate, a printing groove is formed in the bottom of the placing groove, the area of the section of the printing groove is smaller than that of the section of the placing groove, and the bottom of the printing screen is close to and connected with the inner wall of the bottom of the placing groove. According to the invention, the stability of fixing the edge of the printing screen is improved through the bending part at the top of the pressing part, the printing screen is prevented from being torn apart to influence the printing effect, and the contact surface is enlarged by matching with the abutting block of the pressing part at the top of the clamping part, so that the phenomenon that the edge of the printing screen is torn apart to influence the normal operation of printing due to the single-point fixing is avoided.
Description
Technical Field
The invention relates to the technical field of communication processing, in particular to a printing device for processing a printed circuit board of a 5G coupler.
Background
Communication refers to information exchange and transmission between people or between people and nature through a certain behavior or medium, and refers to that two or more parties needing information can accurately and safely transmit information from one party to another party without violating their respective wishes in a broad sense, 5G is short for fifth generation mobile communication technology, and as the 5G communication age gradually comes, circuit board requirements for manufacturing functions such as high-frequency circuits and coupling circuits of 5G communication equipment are increasing.
In the prior art, a printed circuit board is generally printed by a printing screen plate, a circuit substrate is generally conveyed to a corresponding station by a conveying mechanism, a liftable printing screen plate and a pressing mechanism are arranged above the corresponding station, a printing screen at the bottom of the printing screen plate is attached to the circuit substrate, and printing paste at the top of the printing screen is extruded out of a corresponding gap by the circularly moving pressing mechanism to perform screen printing operation.
Disclosure of Invention
Based on the technical problem of the background art, the invention provides a printing device for processing a printed circuit board of a 5G coupler.
The invention provides a printing device for processing a 5G coupler printed circuit board, which comprises a base, wherein a conveying seat is fixed at the top of the base, a liftable printing screen plate is arranged at the top of the conveying seat, a printing screen is fixed at the bottom of the printing screen plate, a matched stamping mechanism is arranged at the top of the printing screen, printing slurry is placed at the top of the printing screen, a placing groove is formed in the top of the printing screen plate, a printing groove is formed in the bottom of the placing groove, the area of the section of the printing groove is smaller than that of the section of the placing groove, the bottom of the printing screen is connected to the inner wall of the bottom of the placing groove in a leaning manner, a clamping piece of a clip-off structure is connected to the inner wall of the bottom of the placing groove in a sliding manner, the clamping piece is provided with a pressing part of a horizontal structure and a pressing part of a vertical structure, and the bottom end of one side of the pressing part, which is close to the pressing part, is provided with a cambered angle.
Preferably, a plurality of abutting blocks with strip structures are fixed at the bottom of the clamping stop piece and at positions corresponding to the pressing parts.
Preferably, the outer wall of one side of the bottom of the abutting block, which is close to the printing screen plate, is provided with an arc surface, one side of the bottom of the abutting block, which is far away from the arc surface, is provided with an inclined surface, and the inclined surface inclines upwards towards one side, which is far away from the printing screen plate.
Preferably, lifting rods are fixed at four corners between the bottom of the printing screen and the top of the base.
Preferably, the both sides that base top outer wall is located the transport seat all are fixed with the mount, and the top level of mount is provided with the horizontal part, and the horizontal part extends to one side that is close to the transport seat, and the spout has been seted up at the top of horizontal part, and the bottom inner wall of spout is fixed with the elastic component, and the top of elastic component is connected with the auxiliary member with spout inner wall sliding connection.
Preferably, the top end of the auxiliary piece is arranged in an arc structure, and the top end of the auxiliary piece inclines downwards towards the side far away from the conveying seat.
Preferably, the top of the auxiliary member is provided with a plurality of auxiliary grooves penetrating therethrough, one side of each auxiliary groove close to the conveying seat is provided with an inclined surface, and the inner wall of one side of each auxiliary groove inclines upwards to one side close to the conveying seat.
Preferably, the elastic part is a spring fixedly connected with the bottom of the auxiliary part, and the bottom end of the spring is fixedly connected with the inner wall of the bottom of the sliding chute.
Preferably, the elastic piece is arranged to be connected with the bottom of the auxiliary piece in a rotating mode, the bottom of the sliding groove is provided with a positioning groove, the area of the cross section of the positioning groove is larger than that of the cross section of the sliding groove, the bottom end of the elastic piece is fixedly connected with the bottom of the positioning groove, and the elastic piece is arranged in an inclined mode.
Compared with the prior art, the invention provides a printing device for processing a 5G coupler printed circuit board, which has the following beneficial effects:
1. the printing device for processing the 5G coupler printed circuit board is characterized in that a horizontally placed printing screen plate is connected through lifting rods positioned on two sides of a conveying seat, a placing groove and a printing groove with a smaller cross section are formed in the top of the printing screen plate, the printing screen is placed at the bottom of the placing groove from the top, the clamping piece with a clip-shaped structure is used for downwards pressing and clamping the printing screen from the top of the printing screen, and the middle position of the printing screen is pressed to be flush with the bottom of the printing screen plate by utilizing the pressing part at the middle position of the clamping stop piece so as to improve the printing effect, the stability of fixing the edge of the printing screen is improved through the bending part at the top of the pressing part, the printing screen is prevented from being torn apart to influence the printing effect, and the contact surface is enlarged by matching with the abutting block of the pressing part at the top of the clamping part, so that the phenomenon that the edge of the printing screen is torn off to influence the normal operation of printing due to the fixation of a single point is avoided.
2. This 5G coupler is printing device for printed circuit board processing, the device will support the piece bottom and be close to one side of printing screen inner wall and set to the cambered surface to the opposite side that the piece bottom was supported to the volume sets to the inclined plane, and its inclined plane upwards towards the one side slope of keeping away from the cambered surface, when the increase supported between piece bottom and the printing screen area, can reduce the wearing and tearing to the printing screen and guarantee the long-time fixed fastness of printing screen.
3. The printing device for processing the printed circuit board of the 5G coupler is characterized in that auxiliary parts connected with elastic parts are arranged on two sides of the bottom of a printing screen plate, the top of each auxiliary part is higher than the top of a circuit substrate in a normal state by utilizing the elasticity of the elastic parts, the printing screen plate is pressed downwards to enable the printing screen to press the auxiliary parts to be flush with the tops of the circuit substrates, in the process of lifting the printing screen plate after printing is finished, the auxiliary parts can lift along with the elasticity of the elastic parts to support the printing screen tightly until the printing screen is separated from one end of the circuit substrate by a distance, and then the printing screen is separated from the auxiliary parts, so that the phenomenon that the printing screen shakes in the area of the top surface of the circuit substrate to influence the printing quality due to direct lifting is avoided.
4. This 5G coupler is printing device for printed circuit board processing, the device sets up the auxiliary tank that a plurality of levels set up at the top of auxiliary member, and the inclined plane is set to one side that the auxiliary tank is close to the transport seat, and its inclined plane upwards towards the one side slope that is close to the transport seat, cooperates the cambered surface at auxiliary member top, and when making printing screen descend laminating circuit substrate and auxiliary member top, further strengthens the stability of printing screen border position.
Drawings
FIG. 1 is a schematic diagram of an overall structure of a printing apparatus for processing a printed circuit board of a 5G coupler according to the present invention;
FIG. 2 is a schematic cross-sectional view of a printing apparatus for processing a printed circuit board of a 5G coupler according to the present invention;
FIG. 3 is an enlarged schematic structural diagram of a portion A of a printing apparatus for processing a printed circuit board of a 5G coupler according to the present invention;
fig. 4 is a schematic structural diagram of an auxiliary component of a printing apparatus for processing a 5G coupler printed circuit board according to embodiment 1 of the present invention;
FIG. 5 is an enlarged schematic structural diagram of a portion B of a printing apparatus for processing a printed circuit board of a 5G coupler according to the present invention;
fig. 6 is a schematic structural diagram of an auxiliary component of a printing apparatus for processing a printed circuit board of a 5G coupler according to embodiment 2 of the present invention.
In the figure: the device comprises a base 1, a conveying seat 2, a printing screen plate 3, a printing screen 4, a lifting rod 5, a clamping stop 6, a butting block 7, a fixing frame 8, an auxiliary part 9, an auxiliary groove 10, a spring 11 and an elastic sheet 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and 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.
Example 1
Referring to fig. 1-5, a printing device is used in processing of 5G coupler printed circuit board, including base 1, the top of base 1 is fixed with transport seat 2, and the top of transport seat 2 is provided with liftable printing otter board 3, the bottom of printing otter board 3 is fixed with printing screen 4, and the top of printing screen 4 is provided with the stamping mechanism of looks adaptation, printing paste has been placed at the top of printing screen 4, the standing groove has been seted up at the top of printing otter board 3, and the printing groove has been seted up to the bottom of standing groove, the area of printing groove cross-section is less than the area of standing groove cross-section, the bottom of printing screen 4 is by connecing in the bottom inner wall of standing groove, and the inner wall sliding connection of standing groove has the piece 6 that blocks of shape structure back, block 6 is provided with the pressfitting portion of horizontal structure and the portion that pushes down of vertical structure, and the portion that pushes down is close to one side bottom of pressfitting portion has seted up the arc angle.
In the invention, a plurality of supporting blocks 7 with strip structures are fixed at the bottom of a clamping part 6 corresponding to a pressing part, the outer wall of one side of the bottom of each supporting block 7, which is close to a printing screen 3, is provided with a cambered surface, one side of the bottom of each supporting block 7, which is far away from the cambered surface, is provided with an inclined surface, the inclined surface inclines upwards towards one side, which is far away from the printing screen 3, and four corners between the bottom of the printing screen 3 and the top of a base 1 are respectively fixed with a lifting rod 5;
the outer wall of the top of the base 1 is fixed with a fixed frame 8 at two sides of the conveying seat 2, the top of the fixed frame 8 is horizontally provided with a horizontal part, the horizontal part extends to one side close to the conveying seat 2, the top of the horizontal part is provided with a sliding groove, the inner wall of the bottom of the sliding groove is fixed with an elastic part, and the top end of the elastic part is connected with an auxiliary part 9 in sliding connection with the inner wall of the sliding groove;
the top of auxiliary member 9 sets to the arc structure, and the top of auxiliary member 9 is downward towards the lopsidedness of keeping away from transport seat 2, a plurality of auxiliary grooves 10 that pierce through the setting are seted up at the top of auxiliary member 9, and one side that auxiliary groove 10 is close to transport seat 2 sets to the inclined plane, one side inner wall of auxiliary groove 10 is upwards to the lopsidedness of being close to transport seat 2, the elastic component set to with auxiliary member 9 bottom fixed connection's spring 11, and the bottom inner wall fixed connection of spring 11's bottom and spout.
When the printing screen is used, the printing screen 4 is placed at the bottom of the placing groove from the top, the clamping piece 6 with the clip structure is used for downwards pressing and clamping the printing screen 4 from the top of the printing screen 4, the downwards pressing part at the middle position of the clamping piece 6 is used for pressing the middle position of the printing screen 4 to be flush with the bottom of the printing screen plate 3 so as to improve the printing effect, the stability of fixing the edge of the printing screen 4 is improved through the bending part at the top of the downwards pressing part, the printing screen 4 is prevented from being torn off to influence the printing effect, and the contact surface is enlarged by matching with the abutting block 7 at the pressing part at the top of the clamping piece 6 so as to prevent the edge of the printing screen 4 from being torn off to influence the normal operation of printing due to the single-point fixation;
in the process of lifting the printing screen plate 3 after printing is finished, the auxiliary part 9 is lifted along with the lifting of the spring 11, the printing screen 4 is abutted tightly until the printing screen 4 is separated from one end of the circuit substrate and then separated from the auxiliary part 9, and the phenomenon that the printing screen 4 is shaken in the area of the top surface of the circuit substrate to influence the printing quality due to direct lifting is avoided.
Example 2
Referring to fig. 1-3 and fig. 6, a printing device for processing a printed circuit board of a 5G coupler is provided, wherein an elastic piece 12 is rotatably connected with the bottom of an auxiliary piece 9, a positioning groove is formed in the bottom of the sliding groove, the area of the cross section of the positioning groove is larger than that of the cross section of the sliding groove, the bottom end of the elastic piece 12 is fixedly connected with the bottom of the positioning groove, and the elastic piece 12 is obliquely arranged.
When the auxiliary device is used, the spring 11 in the embodiment 1 is replaced by the elastic piece 12 which is obliquely arranged, the top of the elastic piece 12 is rotatably connected with the bottom of the auxiliary device 9, and the horizontal stability and the bearing strength of the auxiliary device 9 can be increased while the contraction and the reset of the auxiliary device 9 are ensured.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The printing device for processing the printed circuit board of the 5G coupler comprises a base (1), wherein a conveying seat (2) is fixed at the top of the base (1), a liftable printing screen (3) is arranged at the top of the conveying seat (2), a printing screen (4) is fixed at the bottom of the printing screen (3), a stamping mechanism matched with the top of the printing screen (4) is arranged at the top of the printing screen (4), and printing slurry is placed at the top of the printing screen (4), and the printing device is characterized in that a placing groove is formed in the top of the printing screen (3), a printing groove is formed in the bottom of the placing groove, the area of the cross section of the printing groove is smaller than that of the cross section of the placing groove, the bottom of the printing screen (4) is connected with the inner wall of the bottom of the placing groove in a sliding mode, a clamping piece (6) of a zigzag structure is connected to the inner wall of the placing groove in a sliding mode, and the clamping piece (6) is provided with a pressing part of a horizontal structure and a pressing part of a vertical structure, and the bottom end of one side of the pressing part close to the pressing part is provided with an arc angle, and the bottom of the clamping and stopping piece (6) is fixed with a plurality of supporting blocks (7) with strip structures at the positions corresponding to the pressing part.
2. The printing device for processing the 5G coupler printed circuit board according to claim 1, wherein the outer wall of the bottom of the resisting block (7) close to one side of the printing screen (3) is provided with an arc surface, the side of the bottom of the resisting block (7) far away from the arc surface is provided with an inclined surface, and the inclined surface inclines upwards towards the side far away from the printing screen (3).
3. The printing device for processing the printed circuit board of the 5G coupler according to claim 1 or 2, wherein the lifting rods (5) are fixed at four corners between the bottom of the printing screen (3) and the top of the base (1).
4. The printing device for processing the 5G coupler printed circuit board according to claim 3, wherein the outer wall of the top of the base (1) is fixed with a fixing frame (8) at both sides of the conveying seat (2), the top of the fixing frame (8) is horizontally provided with a horizontal part, the horizontal part extends to one side close to the conveying seat (2), the top of the horizontal part is provided with a sliding groove, the inner wall of the bottom of the sliding groove is fixed with an elastic part, and the top end of the elastic part is connected with an auxiliary part (9) in sliding connection with the inner wall of the sliding groove.
5. A printing device for processing a 5G coupler PCB as claimed in claim 4, wherein the top end of the auxiliary member (9) is arranged in an arc-shaped configuration, and the top end of the auxiliary member (9) is inclined downwards towards the side away from the transport base (2).
6. A printing device for processing a 5G coupler printed circuit board according to claim 5, characterized in that the top of the auxiliary member (9) is provided with a plurality of auxiliary grooves (10) arranged in a penetrating manner, one side of the auxiliary groove (10) close to the conveying seat (2) is provided with an inclined surface, and the inner wall of one side of the auxiliary groove (10) inclines upwards towards one side close to the conveying seat (2).
7. A printing device for processing a 5G coupler PCB as claimed in claim 6, wherein the elastic member is provided as a spring (11) fixedly connected with the bottom of the auxiliary member (9), and the bottom end of the spring (11) is fixedly connected with the inner wall of the bottom of the chute.
8. The printing device for processing the 5G coupler printed circuit board according to claim 6, wherein the elastic member is arranged as an elastic sheet (12) rotatably connected with the bottom of the auxiliary member (9), a positioning groove is formed in the bottom of the sliding groove, the area of the cross section of the positioning groove is larger than that of the cross section of the sliding groove, the bottom end of the elastic sheet (12) is fixedly connected with the bottom of the positioning groove, and the elastic sheet (12) is obliquely arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010408569.7A CN111479399B (en) | 2020-05-14 | 2020-05-14 | Printing device for processing printed circuit board of 5G coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010408569.7A CN111479399B (en) | 2020-05-14 | 2020-05-14 | Printing device for processing printed circuit board of 5G coupler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111479399A CN111479399A (en) | 2020-07-31 |
| CN111479399B true CN111479399B (en) | 2021-07-30 |
Family
ID=71759898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010408569.7A Active CN111479399B (en) | 2020-05-14 | 2020-05-14 | Printing device for processing printed circuit board of 5G coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111479399B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2500791A1 (en) * | 1980-12-24 | 1982-09-03 | Cii Honeywell Bull | DEVICE FOR POSITIONING AND LOCKING A SCREEN HOLDER IN A SCREEN PRINTING MACHINE, IN PARTICULAR FOR THE MANUFACTURE OF SUPPORTS OF THICK-LAYERED CONNECTION CIRCUITS |
| JPH04130883U (en) * | 1991-05-27 | 1992-12-01 | 株式会社村田製作所 | Printing mask device |
| JP2000006366A (en) * | 1998-06-26 | 2000-01-11 | Uht Corp | Screen printer with thick film circuit and screen printing plate |
| JP3292194B2 (en) * | 2000-02-01 | 2002-06-17 | 松下電器産業株式会社 | Printing plate and printing method using the same |
-
2020
- 2020-05-14 CN CN202010408569.7A patent/CN111479399B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111479399A (en) | 2020-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212573141U (en) | Lamination device of multilayer circuit board | |
| CN111479399B (en) | Printing device for processing printed circuit board of 5G coupler | |
| CN212342872U (en) | NANO SIM card seat | |
| CN205210473U (en) | Liquid crystal display module | |
| CN202218478U (en) | Composite metal connecting piece capable of being mounted on PCB | |
| CN211019868U (en) | SMT paster lock tool | |
| CN207251692U (en) | A kind of mobile terminal | |
| CN215682799U (en) | Double-sided DIP wave soldering jig for double-sided SMT patch element | |
| CN110461084A (en) | Thick copper metal substrate presses copper billet method | |
| CN209125976U (en) | A kind of punching press buffer structure of wiring board die cutting die | |
| CN202178416U (en) | Mobile phone, printed circuit board (PCB) assembly and double subscriber identity module (SIM) card connector thereof | |
| CN203135020U (en) | Card rim connector | |
| CN201576593U (en) | Metallic film switch for keyboard | |
| CN201594598U (en) | Electric connector | |
| CN205793641U (en) | A kind of FPC golden finger connecting ZIF stand | |
| CN220570735U (en) | Curved surface pressing device | |
| CN213584190U (en) | Spring plate structure | |
| CN218275204U (en) | Flip formula FPC connector | |
| CN219780536U (en) | Circuit board forming and processing device | |
| CN216980848U (en) | Low-cost oscillator structure and antenna | |
| CN214070256U (en) | Press fitting device is used in production of PCB board | |
| CN211090121U (en) | Circuit board that compressive property is good | |
| CN211942093U (en) | Film pasting device | |
| CN202142660U (en) | Connector for terminal structure | |
| CN210489822U (en) | FPC antenna suitable for terminal POS communication product |
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 | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210706 Address after: No. 36, Fengrong street, Fuping County, Weinan City, Shaanxi Province Applicant after: Shaanxi Fuping Wanxiang Printing Co.,Ltd. Address before: 430070 School of information engineering, Wuhan University of technology, 122 Luoshi Road, Wuhan City, Hubei Province Applicant before: Shi Jing |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |