CN217841534U - 一种环式跟管与潜孔合用型钻头 - Google Patents
一种环式跟管与潜孔合用型钻头 Download PDFInfo
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- CN217841534U CN217841534U CN202221953456.6U CN202221953456U CN217841534U CN 217841534 U CN217841534 U CN 217841534U CN 202221953456 U CN202221953456 U CN 202221953456U CN 217841534 U CN217841534 U CN 217841534U
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- drill bit
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CN202221953456.6U CN217841534U (zh) | 2022-07-27 | 2022-07-27 | 一种环式跟管与潜孔合用型钻头 |
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CN202221953456.6U CN217841534U (zh) | 2022-07-27 | 2022-07-27 | 一种环式跟管与潜孔合用型钻头 |
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CN217841534U true CN217841534U (zh) | 2022-11-18 |
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CN202221953456.6U Active CN217841534U (zh) | 2022-07-27 | 2022-07-27 | 一种环式跟管与潜孔合用型钻头 |
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CN (1) | CN217841534U (zh) |
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2022
- 2022-07-27 CN CN202221953456.6U patent/CN217841534U/zh active Active
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
CP01 | Change in the name or title of a patent holder | ||
CP01 | Change in the name or title of a patent holder |
Address after: 435400 Xinji Industrial Park, dongxinji community, Guangji Avenue, Wuxue City, Huanggang City, Hubei Province Patentee after: Wuxue Jinrui Precision Forging Co.,Ltd. Address before: 435400 Xinji Industrial Park, dongxinji community, Guangji Avenue, Wuxue City, Huanggang City, Hubei Province Patentee before: Wuxue Jinrui Precision Forging Co.,Ltd. |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A type of drill bit that combines ring type heel pipe and down-hole drilling Effective date of registration: 20230922 Granted publication date: 20221118 Pledgee: Bank of China Limited Huanggang branch Pledgor: Wuxue Jinrui Precision Forging Co.,Ltd. Registration number: Y2023980057912 |