CN203441410U - 一种可调节水压的绳索冲击钻具 - Google Patents
一种可调节水压的绳索冲击钻具 Download PDFInfo
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- CN203441410U CN203441410U CN201320502447.XU CN201320502447U CN203441410U CN 203441410 U CN203441410 U CN 203441410U CN 201320502447 U CN201320502447 U CN 201320502447U CN 203441410 U CN203441410 U CN 203441410U
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CN201320502447.XU CN203441410U (zh) | 2013-08-16 | 2013-08-16 | 一种可调节水压的绳索冲击钻具 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103452510A (zh) * | 2013-08-16 | 2013-12-18 | 地质矿产部无锡钻探工具厂 | 一种可调节水压的绳索冲击钻具 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103452510A (zh) * | 2013-08-16 | 2013-12-18 | 地质矿产部无锡钻探工具厂 | 一种可调节水压的绳索冲击钻具 |
CN103452510B (zh) * | 2013-08-16 | 2016-08-10 | 无锡钻探工具厂有限公司 | 一种可调节水压的绳索冲击钻具 |
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Legal Events
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: WUXI DRILLING TOOLS FACTORY CO., LTD. Free format text: FORMER NAME: WUXI DRILLING TOOLS FACTORY OF MINISTRY OF GEOLOGY AND MINERAL RESOURCES |
|
CP01 | Change in the name or title of a patent holder |
Address after: 214174, Chang 8 Garden Road, Huishan Economic Development Zone, Wuxi, Jiangsu, China Patentee after: Wuxi Drilling Tools Factory Co., Ltd. Address before: 214174, Chang 8 Garden Road, Huishan Economic Development Zone, Wuxi, Jiangsu, China Patentee before: Wuxi Drilling Tools Factory |
|
AV01 | Patent right actively abandoned |
Granted publication date: 20140219 Effective date of abandoning: 20160810 |
|
C25 | Abandonment of patent right or utility model to avoid double patenting |