CN206917613U - 一种便携式钻机钻杆扶正装置 - Google Patents
一种便携式钻机钻杆扶正装置 Download PDFInfo
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109025848A (zh) * | 2018-10-12 | 2018-12-18 | 中煤地质集团有限公司北京分公司 | 一种开孔扶正器 |
CN111496916A (zh) * | 2020-04-21 | 2020-08-07 | 惠州工程职业学院 | 一种计算机主板生产用的打孔设备 |
CN113445938A (zh) * | 2021-06-29 | 2021-09-28 | 山西天地王坡煤业有限公司 | 螺旋钻机钻杆扶正器和跟管钻进方法 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109025848A (zh) * | 2018-10-12 | 2018-12-18 | 中煤地质集团有限公司北京分公司 | 一种开孔扶正器 |
CN111496916A (zh) * | 2020-04-21 | 2020-08-07 | 惠州工程职业学院 | 一种计算机主板生产用的打孔设备 |
CN113445938A (zh) * | 2021-06-29 | 2021-09-28 | 山西天地王坡煤业有限公司 | 螺旋钻机钻杆扶正器和跟管钻进方法 |
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GR01 | Patent grant | ||
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CP02 | Change in the address of a patent holder | ||
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Address after: 519000 block a, No.12, Shenghui street, Jinding, high tech Zone, Zhuhai City, Guangdong Province Patentee after: ZHUHAI EGR SPECIAL DRILLING EQUIPMENT Co.,Ltd. Address before: 519000, room 29, 402 middle treasure road, Hengqin Town, Hengqin District, Guangdong, Zhuhai Patentee before: ZHUHAI EGR SPECIAL DRILLING EQUIPMENT Co.,Ltd. |
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CP01 | Change in the name or title of a patent holder | ||
CP01 | Change in the name or title of a patent holder |
Address after: 519000 block a, No.12, Shenghui street, Jinding, high tech Zone, Zhuhai City, Guangdong Province Patentee after: Guangdong Engel Geological Equipment Technology Co.,Ltd. Address before: 519000 block a, No.12, Shenghui street, Jinding, high tech Zone, Zhuhai City, Guangdong Province Patentee before: ZHUHAI EGR SPECIAL DRILLING EQUIPMENT Co.,Ltd. |