CN210600341U - 扭力调节机构及防火止回阀 - Google Patents
扭力调节机构及防火止回阀 Download PDFInfo
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- CN210600341U CN210600341U CN201920882901.6U CN201920882901U CN210600341U CN 210600341 U CN210600341 U CN 210600341U CN 201920882901 U CN201920882901 U CN 201920882901U CN 210600341 U CN210600341 U CN 210600341U
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CN201920882901.6U CN210600341U (zh) | 2019-06-12 | 2019-06-12 | 扭力调节机构及防火止回阀 |
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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: Torsion adjusting mechanism and fireproof check valve Granted publication date: 20200522 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: Torque regulating mechanism and fire check valve Granted publication date: 20200522 License type: Exclusive License Record date: 20201113 |