CN208449284U - 一种用于油井水泥外加剂生产反应釜的出料口 - Google Patents
一种用于油井水泥外加剂生产反应釜的出料口 Download PDFInfo
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- CN208449284U CN208449284U CN201820769901.0U CN201820769901U CN208449284U CN 208449284 U CN208449284 U CN 208449284U CN 201820769901 U CN201820769901 U CN 201820769901U CN 208449284 U CN208449284 U CN 208449284U
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- retracting cylinder
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- reaction kettle
- mounting groove
- cylinder
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CN201820769901.0U CN208449284U (zh) | 2018-05-23 | 2018-05-23 | 一种用于油井水泥外加剂生产反应釜的出料口 |
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CN201820769901.0U CN208449284U (zh) | 2018-05-23 | 2018-05-23 | 一种用于油井水泥外加剂生产反应釜的出料口 |
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CN208449284U true CN208449284U (zh) | 2019-02-01 |
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CN201820769901.0U Expired - Fee Related CN208449284U (zh) | 2018-05-23 | 2018-05-23 | 一种用于油井水泥外加剂生产反应釜的出料口 |
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20201110 Address after: 300457 Tianjin Binhai New Area Development Zone No. second, No. 83, China Petroleum Tianjin building Bohai Drilling Engineering Co., Ltd. Patentee after: CNPC Bohai Drilling Engineering Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Address before: 300457 Tianjin Economic Development Zone, No. 83, No. second main street, Tianjin, China Petroleum Building, Bohai Drilling Engineering Co., Ltd. Patentee before: CNPC Bohai Drilling Engineering Co.,Ltd. |
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TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190201 |
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CF01 | Termination of patent right due to non-payment of annual fee |