CN207906012U - 油田作业污水回注系统 - Google Patents
油田作业污水回注系统 Download PDFInfo
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- CN207906012U CN207906012U CN201721753949.4U CN201721753949U CN207906012U CN 207906012 U CN207906012 U CN 207906012U CN 201721753949 U CN201721753949 U CN 201721753949U CN 207906012 U CN207906012 U CN 207906012U
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- hydraulic
- oil
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- pressure
- water pump
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CN201721753949.4U CN207906012U (zh) | 2017-12-15 | 2017-12-15 | 油田作业污水回注系统 |
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CN201721753949.4U CN207906012U (zh) | 2017-12-15 | 2017-12-15 | 油田作业污水回注系统 |
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CN207906012U true CN207906012U (zh) | 2018-09-25 |
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CN201721753949.4U Active CN207906012U (zh) | 2017-12-15 | 2017-12-15 | 油田作业污水回注系统 |
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CN (1) | CN207906012U (zh) |
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2017
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
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: Oil field work produced -water reinjection system Effective date of registration: 20200528 Granted publication date: 20180925 Pledgee: Weihai City Commercial Bank Limited by Share Ltd. high tech branch Pledgor: WEIHAI HHH COOPERATION MACH.&ELEC. Co.,Ltd. Registration number: 2017990000889 |
|
PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220422 Granted publication date: 20180925 Pledgee: Weihai City Commercial Bank Limited by Share Ltd. high tech branch Pledgor: WEIHAI HHH COOPERATION MACH.&ELEC. CO.,LTD. Registration number: 2017990000889 |