CN206903639U - 一种滑套定位开关工具 - Google Patents
一种滑套定位开关工具 Download PDFInfo
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- CN206903639U CN206903639U CN201720440925.7U CN201720440925U CN206903639U CN 206903639 U CN206903639 U CN 206903639U CN 201720440925 U CN201720440925 U CN 201720440925U CN 206903639 U CN206903639 U CN 206903639U
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- resilient sleeve
- center tube
- sliding sleeve
- gear cap
- sensing switch
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CN201720440925.7U CN206903639U (zh) | 2017-04-25 | 2017-04-25 | 一种滑套定位开关工具 |
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CN201720440925.7U CN206903639U (zh) | 2017-04-25 | 2017-04-25 | 一种滑套定位开关工具 |
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CN206903639U true CN206903639U (zh) | 2018-01-19 |
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CN201720440925.7U Active CN206903639U (zh) | 2017-04-25 | 2017-04-25 | 一种滑套定位开关工具 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109681148A (zh) * | 2018-12-14 | 2019-04-26 | 中国石油大学(北京) | 全井筒保温装置及其使用方法 |
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- 2017-04-25 CN CN201720440925.7U patent/CN206903639U/zh active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109681148A (zh) * | 2018-12-14 | 2019-04-26 | 中国石油大学(北京) | 全井筒保温装置及其使用方法 |
CN109681148B (zh) * | 2018-12-14 | 2020-04-24 | 中国石油大学(北京) | 全井筒保温装置及其使用方法 |
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20190909 Address after: 257000 No. two, 233 South Road, Shandong, Dongying Patentee after: SHANDONG KERUI PETROLEUM EQUIPMENT CO., LTD. Address before: 257067 No. two, 233 South Road, Dongying District, Shandong, Dongying Patentee before: SHANDONG SHENGLI PETROLEUM EQUIPMENT INDUSTRY TECHNOLOGY RESEARCH INSTITUTE |
|
TR01 | Transfer of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Sliding sleeve positioning switch instrument Effective date of registration: 20190927 Granted publication date: 20180119 Pledgee: China Everbright Bank Limited by Share Ltd Dongying branch Pledgor: SHANDONG KERUI PETROLEUM EQUIPMENT CO., LTD. Registration number: Y2019370000052 |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PP01 | Preservation of patent right |
Effective date of registration: 20200610 Granted publication date: 20180119 |
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PP01 | Preservation of patent right |