CN204941467U - 一种带单个动滑轮的高效直驱式抽油机 - Google Patents
一种带单个动滑轮的高效直驱式抽油机 Download PDFInfo
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- CN204941467U CN204941467U CN201520539194.2U CN201520539194U CN204941467U CN 204941467 U CN204941467 U CN 204941467U CN 201520539194 U CN201520539194 U CN 201520539194U CN 204941467 U CN204941467 U CN 204941467U
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CN110173237A (zh) * | 2019-05-21 | 2019-08-27 | 大庆丹诺石油科技开发有限公司 | 一种修井导向滚筒让位机构 |
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Cited By (1)
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CN110173237A (zh) * | 2019-05-21 | 2019-08-27 | 大庆丹诺石油科技开发有限公司 | 一种修井导向滚筒让位机构 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CP03 | Change of name, title or address |
Address after: 313200 No. 137 North Road, Fuxi street, Deqing County, Huzhou, Zhejiang. Patentee after: ZHEJIANG XICHUAN ELECTRICAL Co.,Ltd. Address before: 313200 No. 137 North Ring Road, Wu Kang Town, Deqing County, Huzhou, Zhejiang. Patentee before: ZHEJIANG WEST DRIVE ELECTRICAL TECHNOLOGY CO.,LTD. |
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CP03 | Change of name, title or address | ||
TR01 | Transfer of patent right |
Effective date of registration: 20180925 Address after: 313200 No. 137 North Road, Fuxi street, Deqing County, Huzhou, Zhejiang. Co-patentee after: ZHEJIANG XIZI FORVORDA ELECTRICAL MACHINERY Co.,Ltd. Patentee after: ZHEJIANG XICHUAN ELECTRICAL Co.,Ltd. Address before: 313200 No. 137 North Road, Fuxi street, Deqing County, Huzhou, Zhejiang. Patentee before: ZHEJIANG XICHUAN ELECTRICAL Co.,Ltd. |
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TR01 | Transfer of patent right | ||
CP03 | Change of name, title or address |
Address after: 311305 No. 55 Nanhuan Road, Linan Economic Development Zone, Hangzhou City, Zhejiang Province Co-patentee after: ZHEJIANG XICHUAN ELECTRICAL Co.,Ltd. Patentee after: ZHEJIANG XIZI FORVORDA ELECTRICAL MACHINERY Co.,Ltd. Address before: 313200 No. 137 North Road, Fuxi street, Deqing County, Huzhou, Zhejiang. Co-patentee before: ZHEJIANG XIZI FORVORDA ELECTRICAL MACHINERY Co.,Ltd. Patentee before: ZHEJIANG XICHUAN ELECTRICAL Co.,Ltd. |
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CP03 | Change of name, title or address |