CN207315238U - 一种可独立钻进的pdc复合钻头 - Google Patents
一种可独立钻进的pdc复合钻头 Download PDFInfo
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108678678A (zh) * | 2018-06-06 | 2018-10-19 | 中国矿业大学 | 一种矿用双层干式吸尘钻头 |
CN110025899A (zh) * | 2019-04-28 | 2019-07-19 | 三一重工股份有限公司 | 一种破拆工具、破碎锤及破拆消防车 |
CN112227959A (zh) * | 2020-10-09 | 2021-01-15 | 江苏刘一刀精密机械有限公司 | 一种带有自润滑保护功能的钻头 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108678678A (zh) * | 2018-06-06 | 2018-10-19 | 中国矿业大学 | 一种矿用双层干式吸尘钻头 |
CN108678678B (zh) * | 2018-06-06 | 2024-04-02 | 中国矿业大学 | 一种矿用双层干式吸尘钻头 |
CN110025899A (zh) * | 2019-04-28 | 2019-07-19 | 三一重工股份有限公司 | 一种破拆工具、破碎锤及破拆消防车 |
CN112227959A (zh) * | 2020-10-09 | 2021-01-15 | 江苏刘一刀精密机械有限公司 | 一种带有自润滑保护功能的钻头 |
CN112227959B (zh) * | 2020-10-09 | 2023-09-22 | 江苏刘一刀精密机械有限公司 | 一种带有自润滑保护功能的钻头 |
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GR01 | Patent grant | ||
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CB03 | Change of inventor or designer information | ||
CB03 | Change of inventor or designer information |
Inventor after: Yin Rujian Inventor before: Chen Yiran |
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TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20180521 Address after: 065000 2-1-501, Xinyu Garden District, Anci, Langfang, Hebei Patentee after: Langfang leading Cheng oil machinery equipment Co., Ltd. Address before: 610000 Chengdu, Sichuan, China (Sichuan) free trade pilot area, Chengdu high tech Zone, 599, 13, 10 floor, 1001-1007, Yizhou Avenue. Patentee before: Sichuan Hongyi intellectual property operations limited wisdom |
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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: 20180504 Termination date: 20200814 |