CN206582363U - 一种防火止回阀 - Google Patents
一种防火止回阀 Download PDFInfo
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- CN206582363U CN206582363U CN201720242010.5U CN201720242010U CN206582363U CN 206582363 U CN206582363 U CN 206582363U CN 201720242010 U CN201720242010 U CN 201720242010U CN 206582363 U CN206582363 U CN 206582363U
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- valve
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CN201720242010.5U CN206582363U (zh) | 2017-03-13 | 2017-03-13 | 一种防火止回阀 |
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CN201720242010.5U CN206582363U (zh) | 2017-03-13 | 2017-03-13 | 一种防火止回阀 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106704646A (zh) * | 2017-03-13 | 2017-05-24 | 杭州小米环境科技有限公司 | 一种防火止回阀 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106704646A (zh) * | 2017-03-13 | 2017-05-24 | 杭州小米环境科技有限公司 | 一种防火止回阀 |
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Lianzhi (Beijing) Technical Service Co., Ltd Assignor: HANGZHOU XIAOMI ENVIRONMENT TECHNOLOGY Co.,Ltd. Contract record no.: X2020990000381 Denomination of utility model: Fire-proof check valve Granted publication date: 20171024 License type: Exclusive License Record date: 20200727 |
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EC01 | Cancellation of recordation of patent licensing contract | ||
EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Lianzhi (Beijing) Technical Service Co., Ltd Assignor: HANGZHOU XIAOMI ENVIRONMENT TECHNOLOGY Co.,Ltd. Contract record no.: X2020990000381 Date of cancellation: 20201113 |
|
EE01 | Entry into force of recordation of patent licensing contract | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Lianzhi (Beijing) Technical Service Co., Ltd Assignor: HANGZHOU XIAOMI ENVIRONMENT TECHNOLOGY Co.,Ltd. Contract record no.: X2020990000595 Denomination of utility model: A fire check valve Granted publication date: 20171024 License type: Exclusive License Record date: 20201113 |