CN203614393U - 变螺距双螺杆多相流混输泵螺杆 - Google Patents
变螺距双螺杆多相流混输泵螺杆 Download PDFInfo
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105952641A (zh) * | 2016-07-11 | 2016-09-21 | 中国石油大学(华东) | 一种三段式螺杆转子及其双螺杆真空泵 |
CN112539171A (zh) * | 2020-12-07 | 2021-03-23 | 浙江博大泵业有限公司 | 一种二头三头敷胶双螺杆 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105952641A (zh) * | 2016-07-11 | 2016-09-21 | 中国石油大学(华东) | 一种三段式螺杆转子及其双螺杆真空泵 |
CN112539171A (zh) * | 2020-12-07 | 2021-03-23 | 浙江博大泵业有限公司 | 一种二头三头敷胶双螺杆 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee |
Owner name: TIANJIN JUNYU TECHNOLOGY CO., LTD. Free format text: FORMER NAME: TIANJIN JUNYU AEROSPACE SCIENCE + TECHNOLOGY CO., LTD. |
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CP01 | Change in the name or title of a patent holder |
Address after: 300350 No. 75, Chongqing street, Changqing industry and Trade Zone, Jinnan District, Tianjin Patentee after: TIANJIN JUNYU TECHNOLOGY CO., LTD. Address before: 300350 No. 75, Chongqing street, Changqing industry and Trade Zone, Jinnan District, Tianjin Patentee before: Tianjin Junyu Aerospace Science & Technology Co., Ltd. |
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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: 20140528 Termination date: 20180820 |