CN201428865Y - 混凝土管用的防漏钢制承口及插口 - Google Patents
混凝土管用的防漏钢制承口及插口 Download PDFInfo
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- CN201428865Y CN201428865Y CN2009200975063U CN200920097506U CN201428865Y CN 201428865 Y CN201428865 Y CN 201428865Y CN 2009200975063 U CN2009200975063 U CN 2009200975063U CN 200920097506 U CN200920097506 U CN 200920097506U CN 201428865 Y CN201428865 Y CN 201428865Y
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- steel
- section steel
- concrete pipe
- bellmouth
- leakproof
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Abstract
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Application Number | Priority Date | Filing Date | Title |
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CN2009200975063U CN201428865Y (zh) | 2009-06-30 | 2009-06-30 | 混凝土管用的防漏钢制承口及插口 |
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CN2009200975063U CN201428865Y (zh) | 2009-06-30 | 2009-06-30 | 混凝土管用的防漏钢制承口及插口 |
Publications (1)
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CN201428865Y true CN201428865Y (zh) | 2010-03-24 |
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CN2009200975063U Expired - Fee Related CN201428865Y (zh) | 2009-06-30 | 2009-06-30 | 混凝土管用的防漏钢制承口及插口 |
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CN (1) | CN201428865Y (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105605335A (zh) * | 2015-11-09 | 2016-05-25 | 上海万朗管业有限公司 | 一种用于顶进施工的大口径预应力钢筒混凝土管 |
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2009
- 2009-06-30 CN CN2009200975063U patent/CN201428865Y/zh not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105605335A (zh) * | 2015-11-09 | 2016-05-25 | 上海万朗管业有限公司 | 一种用于顶进施工的大口径预应力钢筒混凝土管 |
CN105605335B (zh) * | 2015-11-09 | 2018-04-27 | 上海万朗水务科技有限公司 | 一种用于顶进施工的大口径预应力钢筒混凝土管 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
EE01 | Entry into force of recordation of patent licensing contract |
Assignee: CNOOC Haohua Environmental Engineering Co., Ltd. Assignor: Tianjin Waterline Pipeline Engineering Co., Ltd. Contract record no.: 2011990001114 Denomination of utility model: Leak-proof steel bellmouth and socket for concrete pipe Granted publication date: 20100324 License type: Exclusive License Record date: 20111226 |
|
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100324 Termination date: 20170630 |
|
CF01 | Termination of patent right due to non-payment of annual fee |