CN204163639U - 一种旋挖钻机钻杆的居中结构 - Google Patents
一种旋挖钻机钻杆的居中结构 Download PDFInfo
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- CN204163639U CN204163639U CN201420599744.5U CN201420599744U CN204163639U CN 204163639 U CN204163639 U CN 204163639U CN 201420599744 U CN201420599744 U CN 201420599744U CN 204163639 U CN204163639 U CN 204163639U
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CN201420599744.5U CN204163639U (zh) | 2014-10-16 | 2014-10-16 | 一种旋挖钻机钻杆的居中结构 |
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Cited By (1)
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CN104389527A (zh) * | 2014-10-16 | 2015-03-04 | 英联鑫博(天津)机械制造有限公司 | 一种挖掘机钻杆的居中结构 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104389527A (zh) * | 2014-10-16 | 2015-03-04 | 英联鑫博(天津)机械制造有限公司 | 一种挖掘机钻杆的居中结构 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CB03 | Change of inventor or designer information | ||
CB03 | Change of inventor or designer information |
Inventor after: Zhao Xinyu Inventor before: Zhao Xinyu Inventor before: Hu Lianqi |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20200313 Address after: No.236 CaoShi village, Songzhuang Town, Tongzhou District, Beijing Patentee after: Zhao Xinyu Address before: 301800 Baodi 232 state-owned factory, Tianjin Patentee before: YINGLIAN XINBO (TIANJIN) MACHINERY MANUFACTURING Co.,Ltd. |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 Termination date: 20211016 |