CN204106886U - A kind of purification of air protective port nose cup - Google Patents
A kind of purification of air protective port nose cup Download PDFInfo
- Publication number
- CN204106886U CN204106886U CN201420188653.2U CN201420188653U CN204106886U CN 204106886 U CN204106886 U CN 204106886U CN 201420188653 U CN201420188653 U CN 201420188653U CN 204106886 U CN204106886 U CN 204106886U
- Authority
- CN
- China
- Prior art keywords
- air
- purification
- nose cup
- layer
- protective port
- 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 - Lifetime
Links
- 238000000746 purification Methods 0.000 title claims abstract description 25
- 230000001681 protective effect Effects 0.000 title claims abstract description 24
- 239000000017 hydrogel Substances 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000010521 absorption reaction Methods 0.000 claims abstract description 12
- 239000000499 gel Substances 0.000 claims abstract description 12
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 239000000725 suspension Substances 0.000 claims abstract description 4
- 229920000742 Cotton Polymers 0.000 claims description 13
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 8
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 8
- 241001330002 Bambuseae Species 0.000 claims description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 8
- 239000011425 bamboo Substances 0.000 claims description 8
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 8
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 6
- YWIVKILSMZOHHF-QJZPQSOGSA-N sodium;(2s,3s,4s,5r,6r)-6-[(2s,3r,4r,5s,6r)-3-acetamido-2-[(2s,3s,4r,5r,6r)-6-[(2r,3r,4r,5s,6r)-3-acetamido-2,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-2-carboxy-4,5-dihydroxyoxan-3-yl]oxy-5-hydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-3,4,5-trihydroxyoxane-2- Chemical compound [Na+].CC(=O)N[C@H]1[C@H](O)O[C@H](CO)[C@@H](O)[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@H](O[C@H]2[C@@H]([C@@H](O[C@H]3[C@@H]([C@@H](O)[C@H](O)[C@H](O3)C(O)=O)O)[C@H](O)[C@@H](CO)O2)NC(C)=O)[C@@H](C(O)=O)O1 YWIVKILSMZOHHF-QJZPQSOGSA-N 0.000 claims description 4
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 229920002125 Sokalan® Polymers 0.000 claims description 3
- 229920004933 Terylene® Polymers 0.000 claims description 3
- 235000011187 glycerol Nutrition 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 229940099259 vaseline Drugs 0.000 claims description 3
- 229920001661 Chitosan Polymers 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 239000010419 fine particle Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 9
- 239000003344 environmental pollutant Substances 0.000 abstract description 8
- 231100000719 pollutant Toxicity 0.000 abstract description 8
- 238000001914 filtration Methods 0.000 abstract description 7
- 238000001179 sorption measurement Methods 0.000 abstract description 7
- 238000004887 air purification Methods 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000271043 Agkistrodon piscivorus Species 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 206010057190 Respiratory tract infections Diseases 0.000 description 1
- 229920002385 Sodium hyaluronate Polymers 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 210000000987 immune system Anatomy 0.000 description 1
- 230000007235 immunity generation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 229940010747 sodium hyaluronate Drugs 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
- A62B23/02—Filters for breathing-protection purposes for respirators
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The utility model relates to healthy prevention field, particularly relates to a kind of purification of air protective port nose cup.This purification of air protective port nose cup comprises oronasal mask body and is connected to the suspension member of mask body both sides, oronasal mask body comprises outer air-permeable layer and interior air-permeable layer, filtrating chip is provided with between described outer air-permeable layer and interior air-permeable layer, described filtrating chip comprises porous absorption basic unit and coating hydrogel sorbing material layer thereon, thus can fine particle effectively in adsorption filtration air and pollutant, make the utility model oronasal mask the adsorption filtration Be very effective of fine particle and pollutant is improved, good air purification effect, simultaneously, a large amount of electric charges is there is in the gel of hydrogel sorbing material layer, can fine particle better in absorbed air, further increasing clean-up effect.
Description
Technical field
The utility model relates to healthy prevention field, particularly relates to a kind of purification of air protective port nose cup.
Background technology
Since modern age, modern industry high speed development, causes the problem of environmental pollution in the present age.The statistics of the World Health Organization shows, there are nearly 1,700 ten thousand people dead because infecting various disease every year, wherein the most seriously respiratory tract infection, live in the serious harm that can cause nerve system of human body, respiratory system and immune system etc. in the environment of pollution for a long time, cause the generation of immunity degradation and relevant disease.Meanwhile, along with the raising of people's biological quality, while the living environment of people to oneself makes every effort to comfortable easiness, also require that there is function that is healthy and health care.At present, air pollution treatment has become the important component part of China's strategy of building a harmonious society, and from present stage, comprehensive survey research shows, pollutant is divided into 3 classes: (1) inhalable particles: dust, smog, pollen etc.; (2) microorganism: bacterium, fungi, virus etc.; (3) harmful volatilization gas.From harness status and the reality of countries in the world, mainly contain 2 approach at present: one is decreasing pollution source, and two is air cleaner and purification.From microcosmic control, mainly prevent and treat from individual's protection, this is also compare effective method.
Usually, the most effective personal protective measures of employing uses mouth mask.But existing mouth mask generally comprises medical mask and common cotton mouth mask.Medical mask structure is simple, mostly is disposable; Common cotton mouth mask can only filter larger particles dust, for the adsorption filtration weak effect of the fine particle in air and pollutant, effectively can not carry out purification of air.
Therefore, for above deficiency, the utility model provides a kind of purification of air protective port nose cup.
Utility model content
(1) technical problem that will solve
The purpose of this utility model is to provide a kind of purification of air protective port nose cup, to solve the problem of the adsorption filtration weak effect to fine particle and pollutant that existing mouth mask exists.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of purification of air protective port nose cup, it suspension member comprising oronasal mask body and be connected to mask body both sides, oronasal mask body comprises outer air-permeable layer and interior air-permeable layer, be provided with filtrating chip between described outer air-permeable layer and interior air-permeable layer, described filtrating chip comprises porous absorption basic unit and coating hydrogel sorbing material layer thereon.
Wherein, described porous absorption basic unit is nonwoven layer, terylene layer, bamboo carbon fibre nethike embrane layer or cotton layer.
Wherein, described porous absorption basic unit is single or multiple lift.
Wherein, the hydrogel sorbing material of described hydrogel sorbing material layer is one or more in chitosan gel rubber, hyaluronic acid sodium gel, carbopol gel, glycerine, polyvinyl alcohol, polyethylene glycol, vaseline.
Wherein, described filtrating chip is arranged on the oronasal mask body position corresponding with mouth and nose.
Wherein, the edge of described oronasal mask body adopts soft filament of can shaping to mount limit.
Wherein, described interior air-permeable layer is provided with the opening for installing filtrating chip.
Wherein, described opening is cover type sheared edge.
Wherein, the side of described oronasal mask body is provided with the opening for installing filtrating chip.
Wherein, the aperture of the air-vent in described porous absorption basic unit is 2.5 μm-200 μm.
(3) beneficial effect
Technique scheme tool of the present utility model has the following advantages: in the purification of air protective port nose cup that the utility model provides, in the outer air-permeable layer of oronasal mask body and interior air-permeable layer, filtrating chip is set, this filtrating chip forms for applying hydrogel sorbing material layer in porous absorption basic unit, like this, can fine particle effectively in adsorption filtration air and pollutant, thus make the utility model oronasal mask the adsorption filtration Be very effective of fine particle and pollutant is improved, good air purification effect, simultaneously, a large amount of electric charges is there is in the gel of hydrogel sorbing material layer, can fine particle better in absorbed air, further increasing clean-up effect.
Accompanying drawing explanation
Fig. 1 is the three-dimensional structure diagram of the utility model purification of air protective port nose cup embodiment 1;
Fig. 2 is the cross-sectional view of the purification of air protective port nose cup of the utility model embodiment 1.
In figure, 1: oronasal mask body; 2: lanyard; 3: lug boss; 4, bridge of the nose bar; 5: filtrating chip; 101: outer air-permeable layer; 102: interior air-permeable layer; 501: cotton basic layer; 502: aquagel layer.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
In description of the present utility model, it should be noted that, orientation or the position relationship of the instruction such as term " interior ", " outward ", " left side " " right side " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
Embodiment 1
As depicted in figs. 1 and 2, the purification of air protective port nose cup that the utility model provides, it lanyard 2 comprising oronasal mask body 1 and be connected to mask body both sides, oronasal mask body 1 comprises outer air-permeable layer 101 and interior air-permeable layer 102, outer air-permeable layer 101 and interior air-permeable layer 102 are respectively one deck cotton, filtrating chip 5 is provided with between outer air-permeable layer 101 and interior air-permeable layer 102, filtrating chip 5 comprises the aquagel layer 502 that cotton basic layer 501 and coating concentration are thereon 0.2g/ml, wherein, the aperture of cotton basic layer 501 is 100 μm; Oronasal mask body 1 surrounding employing diameter is that the thin wire of 0.05mm mounts limit, as mounted limit with thin wire; Preferably, the left side of oronasal mask body 1 arranges an opening, enters the installation passage between outer air-permeable layer 101 and interior air-permeable layer 102 as filtrating chip 5.
During use, by the opening insert port nose cup of filtrating chip 5 from the left side of oronasal mask, then lanyard 2 is hung on ear, so that oronasal mask is fixed on face; After using, filtrating chip 5 is taken out from oronasal mask, with clean water oronasal mask and filtrating chip 5, dry.When re-using, again spray hydrogel solution on cotton basic layer 501 surface of filtrating chip 5, can use after installation.
Certainly, cotton basic layer 501 can also take nonwoven layer, terylene layer, bamboo carbon fibre nethike embrane layer or other porous to adsorb basic unit's replacement, and when selecting other porous absorption basic unit, on it, the aperture of air-vent is 2.5 μm-200 μm; Aquagel layer 502 also can adopt other hydrogel sorbing material layers to replace, as one or more in hyaluronic acid sodium gel, carbopol gel, glycerine, polyvinyl alcohol, polyethylene glycol, vaseline; Lanyard 2 also can adopt the suspension member of other types to replace; Filtrating chip 5 is arranged on oronasal mask body 1 position corresponding with mouth and nose natch.
Further, as required, cotton basic layer 501 is to be individual layer, also can be multilayer.Certainly, the filter effect that multilayer can strengthen filtrating chip 5 is designed to.
Usually, the oronasal mask position corresponding with human nose has lug boss 3, and lug boss 3 is provided with bridge of the nose bar 4, againsts the bridge of the nose to make this lug boss 3.
Embodiment 2
Embodiment 2 with implement 1 unlike, outer air-permeable layer is two-layer cotton, interior air-permeable layer is provided with the opening for mounting and dismounting filtrating chip, this opening is cover type sheared edge, cotton basic layer in embodiment 1 is replaced with the hydrophilic bamboo carbon fibre nethike embrane layer that thickness is 0.2mm, hydrophilic bamboo carbon fibre nethike embrane layer sprays Sodium Hyaluronate hydrogel.
During use, filtrating chip is fixed in oronasal mask by the cover type sheared edge in oronasal mask.After using, filtrating chip is taken out from the opening air-permeable layer in oronasal mask, with clean water oronasal mask and filtrating chip, dry.When re-using, at the hydrophilic bamboo carbon fibre net film surface spray water gel solution again of filtrating chip, can use after installation.
In the utility model, there are enough flexibilities in the porous absorption basic unit of cotton basic layer, hydrophilic bamboo carbon fibre nethike embrane layer or other types, can be suitably qualitative, thus can fit with human body face better when wearing; Hydrogel sorbing material layer on filtrating chip has higher security to human body, simultaneously there is a large amount of electric charges in gel, can fine particle better in absorbed air, improves clean-up effect.
In sum, in the purification of air protective port nose cup that the utility model provides, in the outer air-permeable layer of oronasal mask body and interior air-permeable layer, filtrating chip is set, this filtrating chip for apply aquagel layer or other hydrogel sorbing material layers in cotton basic layer or hydrophilic bamboo carbon fibre nethike embrane layer, and pass through in the upper shed of oronasal mask body with the filtrating chip that is easy for installation and removal, thus make the utility model oronasal mask the adsorption filtration Be very effective of fine particle and pollutant is improved, good air purification effect, people are enable to suck healthy clean air, finally decrease the harm of air pollution on human.
Below be only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (10)
1. a purification of air protective port nose cup, it is characterized in that: it suspension member comprising oronasal mask body and be connected to mask body both sides, oronasal mask body comprises outer air-permeable layer and interior air-permeable layer, be provided with filtrating chip between described outer air-permeable layer and interior air-permeable layer, described filtrating chip comprises porous absorption basic unit and coating hydrogel sorbing material layer thereon.
2. purification of air protective port nose cup according to claim 1, is characterized in that: described porous absorption basic unit is nonwoven layer, terylene layer, bamboo carbon fibre nethike embrane layer or cotton layer.
3. purification of air protective port nose cup according to claim 2, is characterized in that: described porous absorption basic unit is single or multiple lift.
4. purification of air protective port nose cup according to claim 1, is characterized in that: the hydrogel sorbing material of described hydrogel sorbing material layer is the one in chitosan gel rubber, hyaluronic acid sodium gel, carbopol gel, glycerine, polyvinyl alcohol, polyethylene glycol, vaseline.
5. purification of air protective port nose cup according to claim 1, is characterized in that: described filtrating chip is arranged on the oronasal mask body position corresponding with mouth and nose.
6. purification of air protective port nose cup according to claim 1, is characterized in that: the edge of described oronasal mask body adopts soft filament of can shaping to mount limit.
7. purification of air protective port nose cup according to claim 1, is characterized in that: described interior air-permeable layer is provided with the opening for installing filtrating chip.
8. purification of air protective port nose cup according to claim 7, is characterized in that: described opening is cover type sheared edge.
9. purification of air protective port nose cup according to claim 1, is characterized in that: the side of described oronasal mask body is provided with the opening for installing filtrating chip.
10. purification of air protective port nose cup according to claim 1, is characterized in that: the aperture of the air-vent in described porous absorption basic unit is 2.5 μm-200 μm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420188653.2U CN204106886U (en) | 2014-04-17 | 2014-04-17 | A kind of purification of air protective port nose cup |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420188653.2U CN204106886U (en) | 2014-04-17 | 2014-04-17 | A kind of purification of air protective port nose cup |
Publications (1)
Publication Number | Publication Date |
---|---|
CN204106886U true CN204106886U (en) | 2015-01-21 |
Family
ID=52324251
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201420188653.2U Expired - Lifetime CN204106886U (en) | 2014-04-17 | 2014-04-17 | A kind of purification of air protective port nose cup |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN204106886U (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104721490A (en) * | 2015-04-02 | 2015-06-24 | 环境保护部南京环境科学研究所 | Nasal spray for efficiently filtering and preventing air pollutants and preparation method thereof |
CN105231525A (en) * | 2015-10-21 | 2016-01-13 | 梁江 | Novel mask |
WO2017152896A3 (en) * | 2016-03-09 | 2017-11-02 | Römer Heinz G | Virological breathing mask for the protection against droplet infections |
CN107649077A (en) * | 2017-10-20 | 2018-02-02 | 北京化工大学 | Novel anti-mist haze porous aquagel and its preparation method and application |
CN107927943A (en) * | 2017-12-14 | 2018-04-20 | 成都新柯力化工科技有限公司 | A kind of air-prevention haze special mask note and preparation method |
CN112892199A (en) * | 2021-02-02 | 2021-06-04 | 四川酉荃环保科技有限公司 | Purification sheet capable of decomposing formaldehyde for long time |
-
2014
- 2014-04-17 CN CN201420188653.2U patent/CN204106886U/en not_active Expired - Lifetime
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104721490A (en) * | 2015-04-02 | 2015-06-24 | 环境保护部南京环境科学研究所 | Nasal spray for efficiently filtering and preventing air pollutants and preparation method thereof |
CN105231525A (en) * | 2015-10-21 | 2016-01-13 | 梁江 | Novel mask |
WO2017152896A3 (en) * | 2016-03-09 | 2017-11-02 | Römer Heinz G | Virological breathing mask for the protection against droplet infections |
CN107649077A (en) * | 2017-10-20 | 2018-02-02 | 北京化工大学 | Novel anti-mist haze porous aquagel and its preparation method and application |
CN107649077B (en) * | 2017-10-20 | 2020-09-04 | 北京化工大学 | Haze-preventing porous hydrogel and preparation method and application thereof |
CN107927943A (en) * | 2017-12-14 | 2018-04-20 | 成都新柯力化工科技有限公司 | A kind of air-prevention haze special mask note and preparation method |
CN112892199A (en) * | 2021-02-02 | 2021-06-04 | 四川酉荃环保科技有限公司 | Purification sheet capable of decomposing formaldehyde for long time |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN204106886U (en) | A kind of purification of air protective port nose cup | |
CN203915822U (en) | A kind of gauze mask | |
CN205339888U (en) | Take fixing device is adsorbed to negative pressure automation to supply gas and filter antifog haze face guard | |
CN203507346U (en) | Concealed air filtering nasal plug | |
CN203469255U (en) | Portable air filter | |
CN203280932U (en) | Dust mask | |
CN204393422U (en) | A kind of Split mask with anthocyanidin filter disc | |
CN201823180U (en) | Monomer invisible filter nose snuffle | |
CN108936890A (en) | A kind of Chinese medicine micro-filtration filter disc, production method and its Chinese medicine haze mask | |
CN206565343U (en) | A kind of anti-haze humidification Antimicrobial protective mask | |
CN204709952U (en) | The virus purified type filtrating chip of sterilizing for solving PM2.5 problem | |
CN209594788U (en) | PM2.5 protective mask | |
CN205569539U (en) | System oxygen antifog haze gauze mask that disinfects | |
CN105054406B (en) | A kind of haze screen window | |
CN204181012U (en) | Mouth mask | |
CN203828134U (en) | Mask for blocking PM2.5 | |
CN108851287A (en) | Production method for anti-dust mask | |
CN104740803A (en) | Functional type external nasal respiratory filter | |
CN211832927U (en) | Antibacterial and antiviral agalloch eaglewood mask | |
CN102462899A (en) | Nose cup | |
CN204444344U (en) | Novel medical face shield | |
CN204540897U (en) | Haze composite material | |
CN202724505U (en) | Nose plug type air purifier | |
CN206744640U (en) | A kind of haze mouth mask | |
CN108936882A (en) | A kind of anti-dust mask of good airproof performance |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CP03 | Change of name, title or address | ||
CP03 | Change of name, title or address |
Address after: 100085 C, block, 3rd Street, Beijing, Haidian District, China C701 Patentee after: BEIJING DATSING BIO-TECH Co.,Ltd. Address before: 100085 Beijing city Haidian District Third Street No. 9 C-701 Wah Building Patentee before: BEIJING DATSING BIO-TECH Co.,Ltd. |
|
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20150121 |