CN203808032U - 一种洞室堵头混凝土排水管可控装置 - Google Patents
一种洞室堵头混凝土排水管可控装置 Download PDFInfo
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- CN203808032U CN203808032U CN201420227742.3U CN201420227742U CN203808032U CN 203808032 U CN203808032 U CN 203808032U CN 201420227742 U CN201420227742 U CN 201420227742U CN 203808032 U CN203808032 U CN 203808032U
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CN201420227742.3U CN203808032U (zh) | 2014-05-06 | 2014-05-06 | 一种洞室堵头混凝土排水管可控装置 |
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Cited By (1)
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CN104963324A (zh) * | 2015-05-29 | 2015-10-07 | 中国电建集团贵阳勘测设计研究院有限公司 | 一种导流洞封堵头排气结构及其排气方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN104963324A (zh) * | 2015-05-29 | 2015-10-07 | 中国电建集团贵阳勘测设计研究院有限公司 | 一种导流洞封堵头排气结构及其排气方法 |
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Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: CHINA GEZHOUBA GROUP NO.3 ENGINEERING CO., LTD. Effective date: 20140909 |
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C41 | Transfer of patent application or patent right or utility model | ||
C53 | Correction of patent of invention or patent application | ||
CB03 | Change of inventor or designer information |
Inventor after: Han Binglan Inventor after: Liu Tongxiang Inventor after: Chen Song Inventor after: Ren Chongfeng Inventor after: Zhang Jinshan Inventor after: Hu Shuangyuan Inventor after: Li Qian Inventor after: Wang Wenxiang Inventor after: Hou Ruiming Inventor after: Zhang Xiaogang Inventor after: Long Xiaoming Inventor before: Han Binglan Inventor before: Ren Chongfeng Inventor before: Zhang Jinshan Inventor before: Hu Shuangyuan Inventor before: Li Qian Inventor before: Wang Wenxiang Inventor before: Hou Ruiming Inventor before: Zhang Xiaogang |
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COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HAN BINGLAN REN CHONGFENG ZHANG JINSHAN HU SHUANGYUAN LI QIAN WANG WENXIANG HOU RUIMING ZHANG XIAOGANG TO: HAN BINGLAN REN CHONGFENG ZHANG JINSHAN HU SHUANGYUAN LI QIAN WANG WENXIANG HOU RUIMING ZHANG XIAOGANG LONG XIAOMING LIU TONGXIANG CHEN SONG |
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TR01 | Transfer of patent right |
Effective date of registration: 20140909 Address after: 443002 Hubei province Yichang City Road No. 1 Patentee after: CHINA GEZHOUBA GROUP Co.,Ltd. Patentee after: CHINA GEZHOUBA GROUP NO.3 ENGINEERING Co.,Ltd. Address before: 443002 Hubei province Yichang City Road No. 1 Patentee before: CHINA GEZHOUBA GROUP Co.,Ltd. |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 |
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CF01 | Termination of patent right due to non-payment of annual fee |