CN202899192U - 一种海底管道挖沟机 - Google Patents
一种海底管道挖沟机 Download PDFInfo
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- CN202899192U CN202899192U CN 201220558244 CN201220558244U CN202899192U CN 202899192 U CN202899192 U CN 202899192U CN 201220558244 CN201220558244 CN 201220558244 CN 201220558244 U CN201220558244 U CN 201220558244U CN 202899192 U CN202899192 U CN 202899192U
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CN 201220558244 CN202899192U (zh) | 2012-10-29 | 2012-10-29 | 一种海底管道挖沟机 |
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CN 201220558244 CN202899192U (zh) | 2012-10-29 | 2012-10-29 | 一种海底管道挖沟机 |
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CN202899192U true CN202899192U (zh) | 2013-04-24 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103790202A (zh) * | 2012-10-29 | 2014-05-14 | 中国石油化工股份有限公司 | 海底管道挖沟机及其挖沟方法 |
CN106029989A (zh) * | 2014-01-24 | 2016-10-12 | Ihc工程商业有限公司 | 具有找平装置的挖沟设备 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103790202A (zh) * | 2012-10-29 | 2014-05-14 | 中国石油化工股份有限公司 | 海底管道挖沟机及其挖沟方法 |
CN103790202B (zh) * | 2012-10-29 | 2016-08-03 | 中国石油化工股份有限公司 | 海底管道挖沟机及其挖沟方法 |
CN106029989A (zh) * | 2014-01-24 | 2016-10-12 | Ihc工程商业有限公司 | 具有找平装置的挖沟设备 |
CN106029989B (zh) * | 2014-01-24 | 2019-01-04 | Ihc工程商业有限公司 | 具有找平装置的挖沟设备 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: SINOPEC OILFIELD SERVICE CORPORATION Free format text: FORMER OWNER: SHENGLI PETRO-CHEMICAL BUILDING CO LTD, SHANGLI OIL FIELD Effective date: 20150703 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20150703 Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee after: Sinopec Corp. Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: Sinopec Corp. Patentee before: Shengli Oil Field Shengli Petroleum & Chemical Construction Corporation |
|
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: 20130424 Termination date: 20161029 |