CN203578842U - 一种简易地铁顶板钻孔装置 - Google Patents
一种简易地铁顶板钻孔装置 Download PDFInfo
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- CN203578842U CN203578842U CN201320848674.8U CN201320848674U CN203578842U CN 203578842 U CN203578842 U CN 203578842U CN 201320848674 U CN201320848674 U CN 201320848674U CN 203578842 U CN203578842 U CN 203578842U
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CN201320848674.8U CN203578842U (zh) | 2013-12-17 | 2013-12-17 | 一种简易地铁顶板钻孔装置 |
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CN201320848674.8U CN203578842U (zh) | 2013-12-17 | 2013-12-17 | 一种简易地铁顶板钻孔装置 |
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CN104880166A (zh) * | 2015-06-12 | 2015-09-02 | 李宝 | 事故现场勘验使用的测距尺 |
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CN104880166A (zh) * | 2015-06-12 | 2015-09-02 | 李宝 | 事故现场勘验使用的测距尺 |
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Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: CHINA RAILWAY CONSTRUCTION BRIDGE ENGINEERING GROU Free format text: FORMER NAME: CHINA RAILWAY 13TH BUREAU GROUP ELECTRICAL SERVICE ENGINEERING CO., LTD. |
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CP01 | Change in the name or title of a patent holder |
Address after: 300150 Tianjin city Hebei District Zhicheng Daocheng of No. 41 Patentee after: ELECTRIFICATION ENGINEERING COMPANY LIMITED, CHINA RAILWAY CONSTRUCTION BRIDGE ENGINEERING BUREAU GROUP CO.,LTD. Address before: 300150 Tianjin city Hebei District Zhicheng Daocheng of No. 41 Patentee before: CR13G ELECTRIC ENGINEERING Co.,Ltd. |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 |