CN212371857U - 一种石油设备阀门生产中用的打磨装置 - Google Patents
一种石油设备阀门生产中用的打磨装置 Download PDFInfo
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- CN212371857U CN212371857U CN201821570819.1U CN201821570819U CN212371857U CN 212371857 U CN212371857 U CN 212371857U CN 201821570819 U CN201821570819 U CN 201821570819U CN 212371857 U CN212371857 U CN 212371857U
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CN201821570819.1U CN212371857U (zh) | 2018-09-26 | 2018-09-26 | 一种石油设备阀门生产中用的打磨装置 |
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CN201821570819.1U CN212371857U (zh) | 2018-09-26 | 2018-09-26 | 一种石油设备阀门生产中用的打磨装置 |
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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: A grinding device used in the production of valves for petroleum equipment Effective date of registration: 20221026 Granted publication date: 20210119 Pledgee: Hebei Lincheng Rural Commercial Bank Co.,Ltd. Pledgor: HEBEI BOLU TIANBAO PETROLEUM EQUIPMENT MANUFACTURING CO.,LTD. Registration number: Y2022130000100 |
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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: 20230802 Granted publication date: 20210119 Pledgee: Hebei Lincheng Rural Commercial Bank Co.,Ltd. Pledgor: HEBEI BOLU TIANBAO PETROLEUM EQUIPMENT MANUFACTURING CO.,LTD. Registration number: Y2022130000100 |
|
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 polishing device used in the production of petroleum equipment valves Effective date of registration: 20230810 Granted publication date: 20210119 Pledgee: Hebei Lincheng Rural Commercial Bank Co.,Ltd. Pledgor: HEBEI BOLU TIANBAO PETROLEUM EQUIPMENT MANUFACTURING CO.,LTD. Registration number: Y2023980051667 |