CN204540896U - 细颗粒物过滤装置及主动送风防护口罩 - Google Patents
细颗粒物过滤装置及主动送风防护口罩 Download PDFInfo
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- CN204540896U CN204540896U CN201420655489.1U CN201420655489U CN204540896U CN 204540896 U CN204540896 U CN 204540896U CN 201420655489 U CN201420655489 U CN 201420655489U CN 204540896 U CN204540896 U CN 204540896U
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- 239000000463 material Substances 0.000 description 7
- 230000029058 respiratory gaseous exchange Effects 0.000 description 6
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Application Number | Priority Date | Filing Date | Title |
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CN201420655489.1U CN204540896U (zh) | 2014-11-04 | 2014-11-04 | 细颗粒物过滤装置及主动送风防护口罩 |
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CN201420655489.1U CN204540896U (zh) | 2014-11-04 | 2014-11-04 | 细颗粒物过滤装置及主动送风防护口罩 |
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CN204540896U true CN204540896U (zh) | 2015-08-12 |
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CN201420655489.1U Active CN204540896U (zh) | 2014-11-04 | 2014-11-04 | 细颗粒物过滤装置及主动送风防护口罩 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20170525 Address after: 517000 Guangdong city of Heyuan Province, North High Tech Development Zone, No. eight Binjiang Avenue West communication limited company office building, one or two floor Patentee after: HEYUAN LEZHENG ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Address before: 518000 B11 building, third Tan Tau Industrial Zone, Baoan District, Guangdong, Shenzhen, Songgang Patentee before: Zhu Qihou |
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Effective date of registration: 20200511 Granted publication date: 20150812 |
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Date of cancellation: 20201111 Granted publication date: 20150812 |
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PP01 | Preservation of patent right |
Effective date of registration: 20201111 Granted publication date: 20150812 |
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Date of cancellation: 20240511 Granted publication date: 20150812 |
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