CN205714051U - 一种用于气体钻井的放喷管线降尘设备 - Google Patents
一种用于气体钻井的放喷管线降尘设备 Download PDFInfo
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- CN205714051U CN205714051U CN201620565300.9U CN201620565300U CN205714051U CN 205714051 U CN205714051 U CN 205714051U CN 201620565300 U CN201620565300 U CN 201620565300U CN 205714051 U CN205714051 U CN 205714051U
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CN201620565300.9U CN205714051U (zh) | 2016-06-14 | 2016-06-14 | 一种用于气体钻井的放喷管线降尘设备 |
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CN201620565300.9U CN205714051U (zh) | 2016-06-14 | 2016-06-14 | 一种用于气体钻井的放喷管线降尘设备 |
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Effective date of registration: 20201127 Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Address before: 710016 Shaanxi city of Xi'an province Weiyang District four road Fengcheng Changqing Technology Building Patentee before: CNPC CHUANQING DRILLING ENGINEERING COMPANY LIMITED ENGINEERING TECHNOLOGY Research Institute |
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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: 20161123 Termination date: 20200614 |