CN202479913U - 小口径钢管内毛刺清除用砂轮磨削头 - Google Patents
小口径钢管内毛刺清除用砂轮磨削头 Download PDFInfo
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- CN202479913U CN202479913U CN2011205135204U CN201120513520U CN202479913U CN 202479913 U CN202479913 U CN 202479913U CN 2011205135204 U CN2011205135204 U CN 2011205135204U CN 201120513520 U CN201120513520 U CN 201120513520U CN 202479913 U CN202479913 U CN 202479913U
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CN2011205135204U CN202479913U (zh) | 2011-12-11 | 2011-12-11 | 小口径钢管内毛刺清除用砂轮磨削头 |
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CN2011205135204U CN202479913U (zh) | 2011-12-11 | 2011-12-11 | 小口径钢管内毛刺清除用砂轮磨削头 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103358212A (zh) * | 2013-07-18 | 2013-10-23 | 吴忠仪表有限责任公司 | 普通车床专用煤化工阀内件万能磨削装置 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103358212A (zh) * | 2013-07-18 | 2013-10-23 | 吴忠仪表有限责任公司 | 普通车床专用煤化工阀内件万能磨削装置 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20161205 Address after: 100010 Beijing city Dongcheng District Dongzhimen Street No. 6 Patentee after: CNOOC Energy Development Co., Ltd. Patentee after: CNOOC Kingland Pipeline Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee before: China National Offshore Oil Corporation Patentee before: CNOOC Energy Development Co., Ltd. Patentee before: CNOOC Kingland Pipeline Co., Ltd. |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20191211 |
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CF01 | Termination of patent right due to non-payment of annual fee |