CN110278317B - Cleanable mobile phone shell - Google Patents
Cleanable mobile phone shell Download PDFInfo
- Publication number
- CN110278317B CN110278317B CN201910332701.8A CN201910332701A CN110278317B CN 110278317 B CN110278317 B CN 110278317B CN 201910332701 A CN201910332701 A CN 201910332701A CN 110278317 B CN110278317 B CN 110278317B
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- China
- Prior art keywords
- groove
- moving
- spring
- end wall
- plate
- 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.)
- Expired - Fee Related
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- 230000000694 effects Effects 0.000 claims abstract description 8
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
- H04M1/185—Improving the rigidity of the casing or resistance to shocks
Abstract
The invention discloses a cleanable mobile phone shell, which comprises a mobile phone shell and two moving cavities positioned in the mobile phone shell, wherein the two moving cavities are mutually and vertically communicated; in the work of the invention, through the cooperation of the mechanical structure, the mobile phone can be protected by surrounding the periphery of the mobile phone, and meanwhile, the mobile phone shell can be completely flattened when being detached, so that the places which are difficult to clean when the mobile phone shell is cleaned can be conveniently cleaned, and the cleaning effect is better.
Description
Technical Field
The invention relates to the field of mobile phone shells, in particular to a mobile phone shell capable of being cleaned.
Background
At present, the most direct suit of cell-phone shell in present stage when using, the easy deposition in the cell-phone shell or leave over dirty object after live time for a long time, nevertheless because the most integrated into one piece of cell-phone shell in present stage, be difficult to the exhibition flat, consequently be difficult to clear up the dust in the crack, influence clean quality.
Disclosure of Invention
The present invention is directed to a mobile phone case capable of being cleaned to solve the above problems.
In order to achieve the purpose, the invention provides the following technical scheme: a cleanable mobile phone shell comprises a mobile phone shell and two moving cavities positioned in the mobile phone shell, wherein the two moving cavities are mutually and vertically communicated, four rotating plates are arranged around the mobile phone shell, a rotating groove is formed in each rotating plate, the lower end wall of each rotating groove is communicated with the external space through one side end wall of each rotating groove, rotating shafts are arranged in the rotating grooves, two ends of each rotating shaft are rotatably connected with the end wall of each rotating groove, two moving plates are arranged in each moving cavity, one ends of the moving plates are positioned in the rotating grooves and are rotatably connected with the rotating shafts, a limiting plate is arranged on each moving plate positioned in each moving cavity, two accommodating grooves communicated with the moving cavities are symmetrically arranged at one ends of the moving plates in an up-and-down mode, a moving groove communicated with the moving cavities is also arranged in one end of the moving plates in a transverse mode, spring grooves communicated with the moving grooves, one end of the compression spring is provided with a trapezoidal rod, one end of the trapezoidal rod is positioned in the spring groove, a rope is arranged on the trapezoidal rod positioned in the spring groove, a translation groove communicated with the accommodating groove is arranged in the wall at the right end of the spring groove, a translation plate is arranged in the translation groove, a telescopic spring is arranged between the translation plate and the end wall of the translation groove, one end of the rope penetrates through the end wall of the translation groove and is connected with the translation plate, the longitudinal moving plate positioned in the moving cavity is provided with two accommodating blocks, one end of each accommodating block is respectively positioned in the accommodating grooves at the left side and the right side, a telescopic groove with a leftward opening is arranged in one end of each accommodating block, the wall at the right end of each telescopic groove is provided with a connecting spring, one end of each connecting spring is provided with a trapezoidal block, the wall at the right end of the moving groove at the right side is provided with a moving spring, and, the right side all be equipped with pushing mechanism in the end wall about the shifting chute, the left side be equipped with ejection mechanism in the end wall of shifting chute left side, ejection mechanism is including being located the left side shifting chute left side and opening are decurrent turn to the chamber, turn to and rotate between the chamber front and back end wall and be connected with a rotation axis, be equipped with rotating gear on the rotation axis, the meshing of rotating gear upper end is connected with the right-hand member and is located the knock-out lever of shifting chute, the knock-out lever left side be equipped with the right-hand member face with the lifter that the rotating gear meshing is connected, the rotor plate up end is equipped with the sheath, and its effect is through four interconnect restriction between the movable plate makes the rotor plate surrounds the protection with.
Preferably, the pushing mechanism comprises a spring cavity which is located at the left end of the right side of the transverse moving plate and has a leftward opening, a connecting groove communicated with the accommodating groove is formed in the right end wall of the spring cavity, a spring plate is arranged in the spring cavity, an electromagnetic rod with a right end located in the connecting groove is arranged at the right end of the spring plate, a return spring with a right end connected with the right end wall of the spring cavity is arranged at the right end of the spring plate, a pushing groove communicated with the moving groove is formed in the end wall at one side of the connecting groove, an electromagnetic block with one end located in the connecting groove and the other end located in the moving groove is arranged in the pushing groove, two pushing shafts are rotatably connected between the front end wall and the rear end wall of the moving groove at the right side, a pushing gear with the left end connected with the electromagnetic block in a meshing manner is arranged on each pushing shaft, the electromagnetic, the right trapezoid block moves rightwards under the driving of a pushing gear when the moving column moves, so that the moving plate can move longitudinally.
As preferred, ejection mechanism is still including being located in cell-phone shell and the decurrent circular slot of opening, be equipped with two plectanes in the circular slot, two link to each other through trapezoidal post between the plectane, trapezoidal post upper end is located the left side the shifting chute, be equipped with the intercommunication in the circular slot both sides end wall the restriction groove of circular slot, restriction groove one side end wall is equipped with the restriction spring, restriction spring one end is equipped with one end and is located the restriction piece of circular slot, four ends are equipped with the spacing groove of intercommunication external space around the cell-phone shell, spacing groove one side end wall is equipped with spacing spring, spacing spring one end is equipped with the stopper, and its effect is passed through ejection mechanism drives the shifting chute motion.
In conclusion, the beneficial effects of the invention are as follows: this device simple structure, the simple operation, through mechanical structure's cooperation, when surrounding the cell-phone and realizing the protection cell-phone all around, can shakeout the cell-phone shell completely when dismantling the cell-phone shell, be difficult to clear place when being convenient for clean the cell-phone shell clean, make clear effect better, compare in the cell-phone shell of present stage, the internal surface that surrounds the cell-phone is clean more easily.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts; the invention will now be described in detail with reference to fig. 1-3, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
FIG. 1 is a schematic view of the overall structure of a mobile phone housing of the invention in full section;
FIG. 2 is a schematic top view of the overall cross-section of the cleanable phone housing of the present invention;
fig. 3 is a schematic view of the entire section of the push mechanism of the mobile phone case with cleaning function according to the present invention.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Referring to fig. 1-3, an embodiment of the present invention is shown: a cleanable mobile phone shell comprises a mobile phone shell 4 and two moving cavities 2 positioned in the mobile phone shell 4, wherein the two moving cavities 2 are mutually and vertically communicated, four rotating plates 3 are arranged around the mobile phone shell 4, a rotating groove 6 with a lower end wall and a side end wall communicated with an external space is arranged in each rotating plate 3, a rotating shaft 9 with two ends rotatably connected with the end wall of each rotating groove 6 is arranged in each rotating groove 6, two moving plates 8 with one ends positioned in the rotating grooves 6 and rotatably connected with the rotating shafts 9 are arranged in each moving cavity 2, a limiting plate 5 is arranged on each moving plate positioned in each moving cavity 2, two accommodating grooves 18 communicated with the moving cavities 2 are symmetrically arranged at one end of each moving plate 8 in a transverse direction in an up-down mode, a moving groove 19 communicated with the moving cavity 2 is also arranged in one end of each moving plate 8 in the transverse direction, and spring grooves 14 communicated with the moving grooves 19 are arranged in the upper end wall and the, a compression spring 15 is arranged on the end wall of one side of the spring groove 14, a trapezoidal rod 13 with one end positioned in the spring groove 14 is arranged at one end of the compression spring 15, a rope 12 is arranged on the trapezoidal rod 13 positioned in the spring groove 14, a translation groove 16 communicated with the accommodating groove 18 is arranged in the wall of the right end of the spring groove 14, a translation plate 17 is arranged in the translation groove 16, an expansion spring 24 is arranged between the translation plate 17 and the end wall of the translation groove 16, one end of the rope 12 penetrates through the end wall of the translation groove 16 and is connected with the translation plate 17, two accommodating blocks 23 are arranged on the longitudinal moving plate 8 in the moving cavity 2, one ends of the two accommodating blocks 23 are respectively positioned in the accommodating groove 18 on the left side and the right side, an expansion groove 44 with a leftward opening is arranged in one end of the accommodating block 23, a connecting spring 43 is arranged on the wall of the right end of the expansion groove 44, and a trapezoidal block 45, the right end wall of the right moving groove 19 is provided with a moving spring 20, the left end of the moving spring 20 is provided with a moving column 21, the left end of the moving column is positioned in the left moving groove 19, the upper end wall and the lower end wall of the moving groove 19 on the right side are respectively provided with a pushing mechanism 47, the left end wall of the moving groove 19 on the left side is provided with an ejection mechanism 48, the ejection mechanism 48 comprises a steering cavity 7 which is positioned on the left side and has a downward opening, a rotating shaft 32 is rotatably connected between the front end wall and the rear end wall of the steering cavity 7, the rotating shaft 32 is provided with a rotating gear 34, the upper end of the rotating gear 34 is in meshing connection with an ejection rod 11, the right end of the ejection rod is positioned in the moving groove 19, the left side of the ejection rod 11 is provided with a lifting rod 10, the right end surface of which is in meshing connection with the rotating gear 34, the mobile phone is surrounded and protected by the rotating plate 3.
Beneficially, the pushing mechanism 47 includes a spring cavity 22 located at the left end of the right lateral moving plate 8 and having a left opening, the wall of the right end of the spring cavity 22 is provided with a connecting groove 46 communicating with the accommodating groove 18, the spring cavity 22 is provided with a spring plate 37, the right end of the spring plate 37 is provided with an electromagnetic rod 36 having a right end located in the connecting groove 46, the right end of the spring plate 37 is provided with a return spring 38 having a right end connected with the wall of the right end of the spring cavity 22, the end wall of one side of the connecting groove 46 is provided with a pushing groove 42 communicating with the moving groove 19, the pushing groove 42 is provided with an electromagnetic block 39 having one end located in the connecting groove 46 and the other end located in the moving groove 19, two pushing shafts 40 are rotatably connected between the front end wall and the rear end wall of the right moving groove 19, the pushing shafts 40 are provided with a pushing gear 41 having a left end engaged with the electromagnetic block 39, and, the electromagnetic rod 36 is attracted to the trapezoidal block 45, and the function of the electromagnetic rod is to drive the right trapezoidal block 45 to move rightwards by driving of the pushing gear 41 when the moving column 21 moves, so that the moving plate 8 can move longitudinally.
Beneficially, ejection mechanism 48 still includes and is located in cell-phone shell 4 and the decurrent circular slot 1 of opening, be equipped with two plectanes 33 in the circular slot 2, two link to each other through trapezoidal post 31 between the plectane 33, trapezoidal post 31 upper end is located the left side in the shifting chute 2, be equipped with the intercommunication in the end wall of circular slot 1 both sides restriction groove 29 of circular slot 1, restriction groove 29 one side end wall is equipped with restriction spring 35, restriction spring 35 one end is equipped with one end and is located the restriction piece 30 in the circular slot 1, four ends are equipped with the spacing groove 26 of intercommunication external space around the cell-phone shell 4, spacing groove 26 one side end wall is equipped with spacing spring 27, spacing spring 27 one end is equipped with stopper 28, and its effect is through ejection mechanism 48 drives the motion of shifting chute 21.
The applicant will now describe in detail the method of use of a cleanable handset housing of the present application with reference to figures 1 to 3 and the particular composition of a cleanable handset housing of the present application described above:
the transverse moving plates 8 are pushed inwards until the two moving plates 8 abut against each other, the spring plates 37 and the electromagnetic rods 36 move rightwards, the reset springs 38 are compressed, the lifting rods 10 move rightwards to drive the trapezoidal columns 31 to move downwards, the lower side circular plates 33 are located on the lower sides of the limiting blocks 30, the trapezoidal rods 13 move towards the direction far away from the moving columns 21 under the driving of the moving columns 21, the translation plates 17 move leftwards under the action of the ropes 12, the telescopic springs 24 are compressed, the longitudinal moving plates 8 are pushed to move inwards at the moment, the accommodating blocks 23 are located in the accommodating grooves 18, the left trapezoidal blocks and the right trapezoidal blocks are located in the translation grooves 16 and the connecting grooves 46 respectively, the four moving plates 8 are connected and limited with each other, and the mobile phone protection is completed;
when needing to dismantle and wash, upwards press down plectane 33, plectane 33 rises and drives trapezoidal post 31 and rise, thereby make lifter 10 rise, drive rotary gear 34 and rotate, thereby make knockout bar 11 drive and remove post 21 and move right, thereby drive when making trapezoidal post 13 reset and promote gear 41 and rotate, thereby make electromagnetism piece 39 be located between electromagnetism pole 36 and the trapezoidal piece 45 in right side completely, thereby make about trapezoidal piece 45 get back to flexible groove 44 under translation board 17 and electromagnetism piece 39's effect respectively, stimulate longitudinal movement board 8 earlier at pulling lateral movement board 8, thereby make cell-phone shell 4 and rotor plate 3 shakeout, be convenient for clean.
The invention has the beneficial effects that: this device simple structure, the simple operation, through mechanical structure's cooperation, when surrounding the cell-phone and realizing the protection cell-phone all around, can shakeout the cell-phone shell completely when dismantling the cell-phone shell, be difficult to clear place when being convenient for clean the cell-phone shell clean, make clear effect better, compare in the cell-phone shell of present stage, the internal surface that surrounds the cell-phone is clean more easily.
The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.
Claims (3)
1. A cleanable mobile phone case comprising a mobile phone case and two mobile cavities located within said mobile phone case, characterized in that: the two moving cavities are mutually and vertically communicated, four rotating plates are arranged around the mobile phone shell, a rotating groove with a lower end wall and a side end wall communicated with the external space is arranged in each rotating plate, rotating shafts with two ends rotatably connected with the end wall of each rotating groove are arranged in each rotating groove, two moving plates with one ends positioned in the rotating grooves and rotatably connected with the rotating shafts are arranged in each moving cavity, a limiting plate is arranged on each moving plate positioned in each moving cavity, two accommodating grooves communicated with the moving cavities are symmetrically arranged at one end of each moving plate in the vertical direction, a moving groove communicated with the moving cavity is also arranged at one end of each moving plate in the horizontal direction, a spring groove communicated with the moving groove is arranged in each moving groove at the upper end wall and the lower end wall of each moving groove at the left side, a compression spring is arranged at the end wall at one side of each spring, the trapezoidal rod positioned in the spring groove is provided with a rope, the wall at the right end of the spring groove is internally provided with a translation groove communicated with the containing groove, the translation groove is internally provided with a translation plate, a telescopic spring is arranged between the translation plate and the end wall of the translation groove, one end of the rope penetrates through the end wall of the translation groove and is connected with the translation plate, the longitudinal moving plate positioned in the moving cavity is provided with two containing blocks, one end of each containing block is respectively positioned in the containing groove at the left side and the right side, one end of each containing block is internally provided with a telescopic groove with a leftward opening, the wall at the right end of the telescopic groove is provided with a connecting spring, one end of each connecting spring is provided with a trapezoidal block, the wall at the right end of the moving groove at the right side is provided with a moving spring, the left end of each moving spring is provided with a moving column with a left end positioned in the, the left side be equipped with ejection mechanism in the travelling groove left end wall, ejection mechanism is including being located the left side travelling groove left side and opening decurrent turn to the chamber, turn to and rotate between the chamber front and back end wall and be connected with a rotation axis, be equipped with rotating gear on the rotation axis, the meshing of rotating gear upper end is connected with the right-hand member and is located the knockout rod of travelling groove, knockout rod left side be equipped with the right-hand member face with the lifter that rotating gear meshing is connected, the rotor plate up end is equipped with the sheath, and its effect is through four interconnect restriction between the movable plate makes the rotor plate surrounds the protection with the cell-phone all around.
2. A cleanable handset housing according to claim 1, wherein: the pushing mechanism comprises a spring cavity which is positioned at the left end of the right side of the transverse moving plate and has a leftward opening, the right end wall of the spring cavity is provided with a connecting groove communicated with the accommodating groove, a spring plate is arranged in the spring cavity, the right end of the spring plate is provided with an electromagnetic rod, the right end of the electromagnetic rod is positioned in the connecting groove, the right end of the spring plate is provided with a reset spring, the right end of the reset spring is connected with the right end wall of the spring cavity, a pushing groove communicated with the moving groove is arranged in the end wall at one side of the connecting groove, an electromagnetic block is arranged in the pushing groove, one end of the electromagnetic block is positioned in the connecting groove, the other end of the electromagnetic block is positioned in the moving groove, two pushing shafts are rotatably connected between the front end wall and the rear end wall of the moving groove at the right side, a pushing gear with, the right trapezoid block moves rightwards under the driving of a pushing gear when the moving column moves, so that the moving plate can move longitudinally.
3. A cleanable handset housing according to claim 1, wherein: the ejection mechanism is characterized by further comprising a circular groove which is located in the mobile phone shell and is provided with a downward opening, two circular plates are arranged in the circular groove and are connected with each other through a trapezoidal column, the upper end of the trapezoidal column is located on the left side of the movable groove, end walls on two sides of the circular groove are internally provided with a communication, a limiting groove of the circular groove is formed in the end wall on one side of the limiting groove, one end of the limiting spring is provided with a limiting block, one end of the limiting spring is located in the limiting block in the circular groove, limiting grooves which are communicated with the external space are arranged in the four ends of the mobile phone shell in the left and right directions, one end wall of each limiting groove is provided with a limiting spring, one end of.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910332701.8A CN110278317B (en) | 2019-04-24 | 2019-04-24 | Cleanable mobile phone shell |
| JP2019097212A JP6603863B1 (en) | 2019-04-24 | 2019-05-23 | Mobile phone case that can be cleaned |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910332701.8A CN110278317B (en) | 2019-04-24 | 2019-04-24 | Cleanable mobile phone shell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110278317A CN110278317A (en) | 2019-09-24 |
| CN110278317B true CN110278317B (en) | 2020-05-05 |
Family
ID=67959778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910332701.8A Expired - Fee Related CN110278317B (en) | 2019-04-24 | 2019-04-24 | Cleanable mobile phone shell |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6603863B1 (en) |
| CN (1) | CN110278317B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110831412B (en) * | 2019-11-18 | 2020-11-10 | 义乌国信土地规划咨询有限公司 | Cell-phone rapid cooling removes sweat equipment |
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| CN109193542A (en) * | 2018-09-12 | 2019-01-11 | 张焕根 | Equipotential-type autoamtic lightning arrester and its application method based on theory of mechanics |
| CN109462682A (en) * | 2018-12-26 | 2019-03-12 | 广州海聊信息科技有限公司 | A kind of preventing falling communication equipment |
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| US7609512B2 (en) * | 2001-11-19 | 2009-10-27 | Otter Products, Llc | Protective enclosure for electronic device |
| TWI365028B (en) * | 2008-10-15 | 2012-05-21 | Htc Corp | Touch handheld electronic device |
| JP3195665U (en) * | 2014-11-13 | 2015-01-29 | 株式会社 ユニック | Portable communication terminal storage equipment |
| CN107613068A (en) * | 2017-11-03 | 2018-01-19 | 卓佐腾 | Mobile phone shell |
| CN108263297A (en) * | 2017-12-26 | 2018-07-10 | 河南智金网络技术有限公司 | A kind of vehicle intelligent hardware device with a key operation cell-phone function |
| CN208522827U (en) * | 2018-06-29 | 2019-02-19 | 广州市乐满趣信息科技有限公司 | A kind of protective value is excellent and is convenient for clean mobile phone shell |
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2019
- 2019-04-24 CN CN201910332701.8A patent/CN110278317B/en not_active Expired - Fee Related
- 2019-05-23 JP JP2019097212A patent/JP6603863B1/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107878577A (en) * | 2017-10-27 | 2018-04-06 | 佛山杰致信息科技有限公司 | A kind of carriage body of convenient handling |
| CN108418935A (en) * | 2018-01-04 | 2018-08-17 | 佛山杰致信息科技有限公司 | A kind of electronic equipment protection shell maintained easily |
| CN108859466A (en) * | 2018-07-26 | 2018-11-23 | 何丽进 | Multi-purpose stapler |
| CN109043648A (en) * | 2018-08-02 | 2018-12-21 | 董亚琴 | Safety cigarette |
| CN109059696A (en) * | 2018-08-23 | 2018-12-21 | 姚建华 | A kind of destructor |
| CN109193542A (en) * | 2018-09-12 | 2019-01-11 | 张焕根 | Equipotential-type autoamtic lightning arrester and its application method based on theory of mechanics |
| CN109462682A (en) * | 2018-12-26 | 2019-03-12 | 广州海聊信息科技有限公司 | A kind of preventing falling communication equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6603863B1 (en) | 2019-11-13 |
| JP2020182204A (en) | 2020-11-05 |
| CN110278317A (en) | 2019-09-24 |
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Effective date of registration: 20200413 Address after: 9 Zhonglong lane, Yutan village, Xianyan street, Ouhai District, Wenzhou City, Zhejiang Province (2nd floor) Applicant after: Wenzhou Zhiwen Electronic Technology Co.,Ltd. Address before: 300000 Chengkun Road, Wanxin Street, Dongli District, Tianjin Applicant before: Tianjin Hanjie Commodity Co.,Ltd. |
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Effective date of registration: 20201223 Address after: 221000 Shimao Square Inner Commercial Street 2, Office 1, Office 2, Building 1-910, Yunlong District, Xuzhou City, Jiangsu Province Patentee after: Jiangsu Shifeng Enterprise Management Consulting Co.,Ltd. Address before: 325006 No.9, Zhonglong lane, Yutan village, Xianyan street, Ouhai District, Wenzhou City, Zhejiang Province (2nd floor) Patentee before: Wenzhou Zhiwen Electronic Technology Co.,Ltd. |
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Granted publication date: 20200505 |