CN205445620U - 一种用于副井井口的可推移式行人平台 - Google Patents
一种用于副井井口的可推移式行人平台 Download PDFInfo
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CN106703827A (zh) * | 2016-12-09 | 2017-05-24 | 云南省建筑科学研究院 | 一种隧道质量检测简易辅助车 |
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CN106703827A (zh) * | 2016-12-09 | 2017-05-24 | 云南省建筑科学研究院 | 一种隧道质量检测简易辅助车 |
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Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CB03 | Change of inventor or designer information |
Inventor after: Qin Chong Inventor before: Qin Chong Inventor before: Wang Sufen |
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CB03 | Change of inventor or designer information | ||
TR01 | Transfer of patent right |
Effective date of registration: 20171120 Address after: Sanmenxia City, Henan province 472000 West Xiaoshan Road No. 42 Patentee after: Sanmenxia Polytechnic Address before: 472000 Daying village, Daying Town, Shanxian, Sanmenxia, Henan Patentee before: Qin Chong |
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TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20190325 |
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CF01 | Termination of patent right due to non-payment of annual fee |