CN104225880A - Flippers - Google Patents
Flippers Download PDFInfo
- Publication number
- CN104225880A CN104225880A CN201410498796.8A CN201410498796A CN104225880A CN 104225880 A CN104225880 A CN 104225880A CN 201410498796 A CN201410498796 A CN 201410498796A CN 104225880 A CN104225880 A CN 104225880A
- Authority
- CN
- China
- Prior art keywords
- vamp
- connecting portion
- sole
- middle end
- large end
- 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.)
- Granted
Links
- 210000000006 pectoral fin Anatomy 0.000 title abstract 5
- 239000004814 polyurethane Substances 0.000 claims abstract description 17
- 229920002635 polyurethane Polymers 0.000 claims abstract description 15
- 230000009189 diving Effects 0.000 claims abstract description 14
- 238000001746 injection moulding Methods 0.000 claims abstract description 14
- 229920001971 elastomer Polymers 0.000 claims abstract description 12
- 239000004744 fabric Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 210000002683 foot Anatomy 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 4
- 210000003423 ankle Anatomy 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000009182 swimming Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 206010016322 Feeling abnormal Diseases 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000476 body water Anatomy 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B31/00—Swimming aids
- A63B31/08—Swim fins, flippers or other swimming aids held by, or attachable to, the hands, arms, feet or legs
- A63B31/10—Swim fins, flippers or other swimming aids held by, or attachable to, the hands, arms, feet or legs held by, or attachable to, the hands or feet
- A63B31/11—Swim fins, flippers or other swimming aids held by, or attachable to, the hands, arms, feet or legs held by, or attachable to, the hands or feet attachable only to the feet
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B3/00—Footwear characterised by the shape or the use
- A43B3/0036—Footwear characterised by the shape or the use characterised by a special shape or design
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B5/00—Footwear for sporting purposes
- A43B5/08—Bathing shoes ; Aquatic sports shoes
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B31/00—Swimming aids
- A63B31/08—Swim fins, flippers or other swimming aids held by, or attachable to, the hands, arms, feet or legs
- A63B31/10—Swim fins, flippers or other swimming aids held by, or attachable to, the hands, arms, feet or legs held by, or attachable to, the hands or feet
- A63B31/11—Swim fins, flippers or other swimming aids held by, or attachable to, the hands, arms, feet or legs held by, or attachable to, the hands or feet attachable only to the feet
- A63B2031/112—Swim fins, flippers or other swimming aids held by, or attachable to, the hands, arms, feet or legs held by, or attachable to, the hands or feet attachable only to the feet with means facilitating walking, e.g. rectractable, detachable or pivotable blades
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The invention discloses a pair of flippers. Each flipper comprises an outsole, a mid-sole and a shoe vamp which are arranged in sequence from bottom to top, wherein the shape and the size of the outsole are matched with those of a foot of a human body; the outsole is a rubber outsole made of rubber; the mid-sole comprises a supporting part matched with the outsole in shape and size and a web-shaped swimming part outwards extending along the edge of the foot sole part of the supporting part; the mid-sole is a polyurethane mid-sole made of polyurethane; the shoe vamp is formed by stitching a diving suit fabric; the mid-sole is integrally formed by the polyurethane by an upper connection injection molding technology and is integrally connected with the shoe vamp and the outsole respectively in the upper connection injection molding process; a containing cavity for containing the whole foot of the human body is formed between the supporting part of the mid-sole and the shoe vamp. The invention discloses the flippers which are simple in structure and convenient to use; the flippers can be used during diving and walking on the land and have the characteristics of softness, durability, shock absorption, slippage resistant and wearing comfortability.
Description
Technical field
The present invention relates to a kind of footwear, be specifically related to a kind of amphibian frog footwear, can use when diving under water, again can at land walking.
Background technology
Frog footwear are important equipments that people use in skin-diving, its allow swimming fan by leg play realize in water, obtain more effective motive force, general frog footwear form by footmuff (being used for fixing frog footwear on diver's pin) and web water half sole (propulsive force providing diver in water) two parts; The footmuff of traditional frog footwear and web water half sole are an inseparable entirety, and the bottom surface of footmuff and web water half sole is in same level, are to adopt rubber once injection moulding.The frog footwear of this structure are in same level due to the bottom surface of footmuff and web water half sole, product purpose is single, can only be adapted at using in water, body idle (such as at land walking etc.) cannot obtain reasonable employment, especially also can be long because of frog footwear entire length, be not easy to trip carry, therefore make troubles to use.And owing to being adopt rubber once injection moulding wearing feeling bad, easily come off during pine diving, tight dress is uncomfortable.
The patent of invention that Chinese Patent Application No. is " 200620066168.3 " discloses a kind of folding dive flipper for diving under water, comprise a footmuff, one web shape blade extended by footmuff and with footmuff disjunctor, characterized by further comprising a footwear body, penetrate for wearer sole, the symmetrical place at the nearly large end, footwear body both sides is fixed with chute, and chute end is provided with card interface; Described footmuff rear end is provided with the cavity matched with above-mentioned footwear body head, and insert fixing for footwear body head, behind footmuff both sides, end terminal is respectively equipped with pulley, and pulley slips into the chute inner position of footwear body by card interface; One snap fastener strap, activity is fixed on pin body, and snap fastener strap is provided with a clamping close device, can for footmuff fold time and footmuff fix.Although this frog footwear can realize amphibian object, there is complex structure and awkward shortcoming in folding structure.
Summary of the invention
For the deficiencies in the prior art, the object of the invention is the frog footwear in order to provide a kind of structure simple and easy to use, namely can use when diving under water, also can at land walking, it also has softness, endurable, antidetonation, anti-skidding and wear comfortable feature simultaneously.
For achieving the above object, the present invention adopts following technical scheme:
A kind of frog footwear, is characterized in that: comprise the large end be fixedly connected sequentially from the bottom up, the middle end and vamp;
The described shape size at the large end and the shape size of human foot match, and the described large end is the rubber sole adopting rubber to be made;
The described middle end, comprises the support portion matched with the shape size at the large end, the web water portion of the web shape that the foot palm part edge along support portion extends outward; The described middle end is the end in the polyurethane of employing polyurethane injection moulding integrated molding;
Described vamp adopts diving suit fabric to make and forms; The support portion at the described middle end and vamp form one for holding the container cavity of the whole foot of human body.
As preferably, the described middle end, adopts polyurethane one-body molded by continuous-upper injection moulding process, and the described middle end links into an integrated entity with vamp and the large end respectively in continuous-upper injection molding process.
As preferably, the described middle end, also comprises the arch extension with opening that the end face along support portion upwards arches upward; One is formed for holding the first container cavity of toe between the inwall of described arch extension and the support portion immediately below arch extension; The edge of opening of described arch extension and edge, support portion enclose formation first connecting portion; Described vamp comprises for wrapping up sole and calcaneal second connecting portion and the 3rd connecting portion for wrapping up ankle, first connecting portion at described second connecting portion and the middle end matches, and described second connecting portion is fixedly connected with the first connecting portion, form one for holding sole and calcaneal second container cavity; After described second container cavity and the first container cavity enclose, form one for holding the container cavity of the whole foot of human body.
As preferably, the bottom surface at the described large end is provided with some projections.Such design can improve the non-skid property at the large end.
As preferably, be provided with some grooves at the bottom edge place at the described large end.Such design can improve the non-skid property at the large end further.
As preferably, the outer surface of described vamp is also provided with elastic cord.Such design can regulate the elasticity of vamp according to individual actual conditions, make wearing more comfortable.
As preferably, be provided with slide fastener in the side of the 3rd connecting portion of described vamp.Such design can be convenient to wear off, and uses convenient.
As preferably, be provided with lift ring at the back side of the 3rd connecting portion of described vamp.Such design is easy to carry.
As preferably, described diving suit fabric, is commonly called as Neoprene, is specifically as follows neoprene.Described vamp first diving suit fabric is cut into some according to shoe-making process, by sewing machine, blocks of diving suit fabric is sewn into vamp, and vamp is carried out to be needed to package with shoe last to shape, thus makes the shape of shoes.The shape of shoe last is closely similar with human foot, base plate is the same with human body sole, all uneven, PU polyurethane is one-body molded by continuous-upper injection moulding process, thus the base plate that the base plate of the middle end making PU make also is same shoe last is equally uneven, such shoes wear to compare and fit, and improve comfortableness further.
Compared to existing technology, beneficial effect of the present invention is:
1, the present invention is provided with and matches at the large end with the shape size of human foot, the web water portion of web shape is arranged on middle body, and the middle end, adopts polyurethane one-body molded by Shooting Technique, namely the frog footwear of this structure can use in diving, can directly walk on land again, achieve amphibian function, have simultaneously structure simple, easy to use and advantage.In addition, because the large end is adopt the rubber sole that is made of rubber, have wearability good, anti-skidding, flexible, not easily split, pliability is better, expandability good, contraction is stable, and hardness is good, good bandability, the advantage of waterproof; The middle end, adopts the end in polyurethane, has that density is low, quality is soft, and elasticity is good, comfortable and easy to wear, and good oxidation resistent susceptibility, excellent anti-wear performance, anti-flex performance, hardness are high; Excellent damping, non-skid property; Good heat resistance; Good chemical resistance; Perishable sharp what environmental protection, not easily fold.Vamp adopts diving suit fabric to make and forms.Therefore, it also has softness, endurable, antidetonation, anti-skidding and wear comfortable advantage.
2, compared with prior art, in the present invention, the end, links into an integrated entity with vamp and the large end respectively in continuous-upper injection molding process, without chemical materials such as plastering agents, does not therefore produce any chemical contamination, nuisanceless to the Nature, also can not come unstuck.Not only meet International Environmental Protection requirement, and in the utilization of material, also fully demonstrate the environmental consciousness of injection moulded shoes.
3, the present invention owing to being provided with arch extension on the middle end, and form one between the inwall of arch extension and the support portion immediately below arch extension for holding the first container cavity of toe, therefore, in the process of walking, the active force of toe mainly concentrates at middle the end, instead of concentrates on the connecting portion of the middle end and vamp, can alleviate the infringement to connecting portion, effectively avoid connecting portion to ftracture, thus extend the service life of shoes.
Accompanying drawing explanation
Fig. 1 is stereogram of the present invention.
Fig. 2 is side-looking structural representation of the present invention.
Fig. 3 of the present inventionly looks up structural representation.
Wherein, 1, the large end; 11, projection; 12, groove; 2, the middle end; 21, support portion; 22, web water portion; 23, arch extension; 231, opening; 24, the first connecting portion; 3, vamp; 31, the second connecting portion; 32, the 3rd connecting portion; 4, elastic cord; 5, slide fastener; 6, ring is lifted.
Detailed description of the invention
Below, by reference to the accompanying drawings and detailed description of the invention, the present invention is described further:
Embodiment 1:
With reference to Fig. 1-3, a kind of frog footwear described in the present embodiment, comprise set gradually from the bottom up the large end 1, the middle end 2 and vamp 3;
The described shape size at the large end 1 and the shape size of human foot match, and the described large end 1 is the rubber sole adopting rubber to be made;
The described middle end 2, comprises the support portion 21 matched with the shape size at the large end 1, the web water portion 22 of the web shape that the foot palm part edge along support portion 21 extends outward; The described middle end 2 is the end in the polyurethane adopting polyurethane to be made; The described middle end 2, also comprises the arch extension 23 with opening 231 that the end face along support portion 21 upwards arches upward; One is formed for holding the first container cavity of toe between the inwall of described arch extension 23 and the support portion 21 immediately below arch extension 23; Opening 231 edge and the edge, support portion 21 of described arch extension 23 enclose formation first connecting portion 24;
Described vamp 3 adopts diving suit fabric to make and forms; Described vamp 3 comprises for wrapping up sole and calcaneal second connecting portion 31 and the 3rd connecting portion 32 for wrapping up ankle, described second connecting portion 31 matches with first connecting portion 24 at the middle end 2, and described second connecting portion 31 is fixedly connected with the first connecting portion 24, form one for holding sole and calcaneal second container cavity; After described second container cavity and the first container cavity enclose, form one for holding the container cavity of the whole foot of human body.
It is one-body molded that the described middle end 2, adopts polyurethane to pass through continuous-upper injection moulding process, and the described middle end 2 links into an integrated entity with vamp 3 and the large end 1 respectively in continuous-upper injection molding process.
The bottom surface at the described large end 1 is provided with some projections 11.Such design can improve the non-skid property at the large end 1.
Some grooves 12 are provided with at the bottom edge place at the described large end 1.Such design can improve the non-skid property at the large end 1 further.
The outer surface of described vamp 3 is also provided with elastic cord 4.Such design can regulate the elasticity of vamp according to individual actual conditions, make wearing more comfortable.
Slide fastener 5 is provided with in the side of the 3rd connecting portion 32 of described vamp 3.Such design can be convenient to wear off, and uses convenient.
Lift ring 6 is provided with at the back side of the 3rd connecting portion 32 of described vamp 3.Such design is easy to carry.
For a person skilled in the art, according to technical scheme described above and design, other various corresponding change and distortion can be made, and all these change and distortion all should belong within the protection domain of the claims in the present invention.
Claims (8)
1. a frog footwear, is characterized in that: comprise the large end be fixedly connected sequentially from the bottom up, the middle end and vamp; The described shape size at the large end and the shape size of human foot match, and the described large end is the rubber sole adopting rubber to be made; The described middle end, comprises the support portion matched with the shape size at the large end, the web water portion of the web shape that the foot palm part edge along support portion extends outward; The described middle end is the end in the polyurethane of employing polyurethane injection moulding integrated molding; Described vamp adopts diving suit fabric to make and forms; One is formed for holding the container cavity of the whole foot of human body between the support portion at the described middle end and vamp.
2. frog footwear according to claim 1, is characterized in that: the described middle end adopts polyurethane one-body molded by continuous-upper injection moulding process, and the described middle end links into an integrated entity with vamp and the large end respectively in the one-body molded process of continuous-upper injection moulding process.
3. frog footwear according to claim 1, is characterized in that: the described middle end also comprises the arch extension with opening that the end face along support portion upwards arches upward; One is formed for holding the first container cavity of toe between the inwall of described arch extension and the support portion immediately below arch extension; The edge of opening of described arch extension and edge, support portion enclose formation first connecting portion; Described vamp comprises for wrapping up sole and calcaneal second connecting portion and the 3rd connecting portion for wrapping up ankle, first connecting portion at described second connecting portion and the middle end matches, and described second connecting portion is fixedly connected with the first connecting portion, form one for holding sole and calcaneal second container cavity; After described second container cavity and the first container cavity enclose, form one for holding the container cavity of the whole foot of human body.
4. frog footwear according to claim 1, is characterized in that: on the bottom surface at the described large end, be provided with some projections.
5. frog footwear according to claim 1, is characterized in that: be provided with some grooves at the bottom edge place at the described large end.
6. frog footwear according to claim 1, is characterized in that: on the outer surface of described vamp, be also provided with elastic cord.
7. frog footwear according to claim 1, is characterized in that: be provided with slide fastener in the side of the 3rd connecting portion of described vamp.
8. frog footwear according to claim 1, is characterized in that: be provided with lift ring at the back side of the 3rd connecting portion of described vamp.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410498796.8A CN104225880B (en) | 2014-09-25 | 2014-09-25 | A kind of frog footwear |
| US15/507,765 US20170304683A1 (en) | 2014-09-25 | 2015-07-24 | Swim fin |
| PCT/CN2015/085088 WO2016045444A1 (en) | 2014-09-25 | 2015-07-24 | Rubber swimming fin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410498796.8A CN104225880B (en) | 2014-09-25 | 2014-09-25 | A kind of frog footwear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104225880A true CN104225880A (en) | 2014-12-24 |
| CN104225880B CN104225880B (en) | 2016-07-06 |
Family
ID=52215332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410498796.8A Active CN104225880B (en) | 2014-09-25 | 2014-09-25 | A kind of frog footwear |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20170304683A1 (en) |
| CN (1) | CN104225880B (en) |
| WO (1) | WO2016045444A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016045444A1 (en) * | 2014-09-25 | 2016-03-31 | 何建雄 | Rubber swimming fin |
| CN106110596A (en) * | 2016-08-19 | 2016-11-16 | 广州市宏来鞋业有限公司 | A kind of modified model frog footwear |
| WO2017028305A1 (en) * | 2015-08-18 | 2017-02-23 | 周道裕 | Amphibious combat footwear |
| CN107373869A (en) * | 2017-07-31 | 2017-11-24 | 何建雄 | A kind of easy-to-dismount frog footwear |
| CN108502128A (en) * | 2017-06-21 | 2018-09-07 | 广州琪高投资有限公司 | Detachable frog shoes |
| WO2019113811A1 (en) * | 2017-12-13 | 2019-06-20 | Rival Shoes Design Limited | A shoe part and a method of manufacturing thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201453969U (en) * | 2009-07-29 | 2010-05-12 | 徐前呈 | Separate-type flippers |
| CN201491787U (en) * | 2009-08-24 | 2010-06-02 | 王春龙 | Slipper |
| US20100317246A1 (en) * | 2009-06-12 | 2010-12-16 | Ultimate Innovative Design, Inc. | Adjustable fin |
| KR20110036804A (en) * | 2011-03-22 | 2011-04-11 | 함영우 | Swim fin |
| CN204092970U (en) * | 2014-09-25 | 2015-01-14 | 何建雄 | A kind of frog footwear |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201491778U (en) * | 2009-09-16 | 2010-06-02 | 杨鹏飞 | Amphibian swimming fins |
| CN104225880B (en) * | 2014-09-25 | 2016-07-06 | 广州市宏来鞋业有限公司 | A kind of frog footwear |
-
2014
- 2014-09-25 CN CN201410498796.8A patent/CN104225880B/en active Active
-
2015
- 2015-07-24 WO PCT/CN2015/085088 patent/WO2016045444A1/en active Application Filing
- 2015-07-24 US US15/507,765 patent/US20170304683A1/en not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100317246A1 (en) * | 2009-06-12 | 2010-12-16 | Ultimate Innovative Design, Inc. | Adjustable fin |
| CN201453969U (en) * | 2009-07-29 | 2010-05-12 | 徐前呈 | Separate-type flippers |
| CN201491787U (en) * | 2009-08-24 | 2010-06-02 | 王春龙 | Slipper |
| KR20110036804A (en) * | 2011-03-22 | 2011-04-11 | 함영우 | Swim fin |
| CN204092970U (en) * | 2014-09-25 | 2015-01-14 | 何建雄 | A kind of frog footwear |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016045444A1 (en) * | 2014-09-25 | 2016-03-31 | 何建雄 | Rubber swimming fin |
| WO2017028305A1 (en) * | 2015-08-18 | 2017-02-23 | 周道裕 | Amphibious combat footwear |
| CN106110596A (en) * | 2016-08-19 | 2016-11-16 | 广州市宏来鞋业有限公司 | A kind of modified model frog footwear |
| WO2018033039A1 (en) * | 2016-08-19 | 2018-02-22 | 何建雄 | Improved flipper |
| CN106110596B (en) * | 2016-08-19 | 2018-06-19 | 广州市宏来鞋业有限公司 | A kind of modified frog footwear |
| CN108502128A (en) * | 2017-06-21 | 2018-09-07 | 广州琪高投资有限公司 | Detachable frog shoes |
| CN107373869A (en) * | 2017-07-31 | 2017-11-24 | 何建雄 | A kind of easy-to-dismount frog footwear |
| WO2019113811A1 (en) * | 2017-12-13 | 2019-06-20 | Rival Shoes Design Limited | A shoe part and a method of manufacturing thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016045444A1 (en) | 2016-03-31 |
| US20170304683A1 (en) | 2017-10-26 |
| CN104225880B (en) | 2016-07-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160602 Address after: Baiyun District of Guangzhou City, Guangdong province 510440 Wo Street Village clean vegetable Street Industrial Zone No. 8 by four Applicant after: GUANGZHOU HONGLAI SHOE INDUSTRY CO., LTD Address before: 510400 B6-1005 room, Fu Feng Taoyuan, Luo Chong, Baiyun District, Guangdong, Guangzhou Applicant before: He Jianxiong |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |