CN203383743U - 一种煤矿用单向止回钻杆 - Google Patents
一种煤矿用单向止回钻杆 Download PDFInfo
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- CN203383743U CN203383743U CN201320427552.1U CN201320427552U CN203383743U CN 203383743 U CN203383743 U CN 203383743U CN 201320427552 U CN201320427552 U CN 201320427552U CN 203383743 U CN203383743 U CN 203383743U
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CN201320427552.1U CN203383743U (zh) | 2013-07-18 | 2013-07-18 | 一种煤矿用单向止回钻杆 |
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CN201320427552.1U CN203383743U (zh) | 2013-07-18 | 2013-07-18 | 一种煤矿用单向止回钻杆 |
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CN203383743U true CN203383743U (zh) | 2014-01-08 |
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CN201320427552.1U Expired - Fee Related CN203383743U (zh) | 2013-07-18 | 2013-07-18 | 一种煤矿用单向止回钻杆 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110410023A (zh) * | 2019-09-06 | 2019-11-05 | 河南铁福来装备制造股份有限公司 | 一种闭水钻杆 |
CN111927336A (zh) * | 2020-08-14 | 2020-11-13 | 沈阳北方交通重工集团有限公司 | 一种煤矿钻孔通讯用单向阀钻杆 |
CN113049298A (zh) * | 2021-04-30 | 2021-06-29 | 西安石油大学 | 一种调节灵活的勘探开发取样装置 |
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2013
- 2013-07-18 CN CN201320427552.1U patent/CN203383743U/zh not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110410023A (zh) * | 2019-09-06 | 2019-11-05 | 河南铁福来装备制造股份有限公司 | 一种闭水钻杆 |
CN111927336A (zh) * | 2020-08-14 | 2020-11-13 | 沈阳北方交通重工集团有限公司 | 一种煤矿钻孔通讯用单向阀钻杆 |
CN113049298A (zh) * | 2021-04-30 | 2021-06-29 | 西安石油大学 | 一种调节灵活的勘探开发取样装置 |
CN113049298B (zh) * | 2021-04-30 | 2022-08-30 | 西安石油大学 | 一种调节灵活的勘探开发取样装置 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: ZHENGZHOU YUANJIAN SAFETY EQUIPMENT CO., LTD. Free format text: FORMER NAME: ZHENGZHOU YUANJIAN COAL MINE EQUIPMENT CO., LTD. |
|
CP01 | Change in the name or title of a patent holder |
Address after: Xinmi City Town Village 452300 meters persimmon Bay Henan city of Zhengzhou Province Patentee after: ZHENGZHOU YUANJIAN SAFETY EQUIPMENT CO., LTD. Address before: Xinmi City Town Village 452300 meters persimmon Bay Henan city of Zhengzhou Province Patentee before: Zhengzhou Yuanjian Coal Mine Equipment Co., Ltd. |
|
C56 | Change in the name or address of the patentee | ||
CP02 | Change in the address of a patent holder |
Address after: Xinmi City Town Village 452370 meters persimmon Bay Henan city of Zhengzhou Province Patentee after: ZHENGZHOU YUANJIAN SAFETY EQUIPMENT CO., LTD. Address before: Xinmi City Town Village 452300 meters persimmon Bay Henan city of Zhengzhou Province Patentee before: ZHENGZHOU YUANJIAN SAFETY EQUIPMENT 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: 20140108 Termination date: 20180718 |