CN206725825U - 一种钢管端头处防断保护装置 - Google Patents
一种钢管端头处防断保护装置 Download PDFInfo
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109025079A (zh) * | 2018-10-29 | 2018-12-18 | 中铁八局集团第四工程有限公司 | 一种新型合金屋面的安全防护结构 |
CN110783878A (zh) * | 2019-10-12 | 2020-02-11 | 福建省鸿官通信工程有限公司 | 一种光电缆迁移方法 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109025079A (zh) * | 2018-10-29 | 2018-12-18 | 中铁八局集团第四工程有限公司 | 一种新型合金屋面的安全防护结构 |
CN109025079B (zh) * | 2018-10-29 | 2023-08-08 | 中铁八局集团建筑工程有限公司 | 一种合金屋面的安全防护结构 |
CN110783878A (zh) * | 2019-10-12 | 2020-02-11 | 福建省鸿官通信工程有限公司 | 一种光电缆迁移方法 |
CN110783878B (zh) * | 2019-10-12 | 2020-12-08 | 福建省鸿官通信工程有限公司 | 一种光电缆迁移方法 |
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CP03 | Change of name, title or address |
Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Co-patentee after: China Petroleum Pipeline Engineering Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Co-patentee after: DESIGN BRANCH OF CHINA PETROLEUM PIPELINE ENGINEERING Corp. Address before: 100007 Beijing Xicheng District six laying Kang Co-patentee before: China Petroleum Pipeline Engineering Co.,Ltd. Patentee before: China National Petroleum Corp. Co-patentee before: DESIGN BRANCH OF CHINA PETROLEUM PIPELINE ENGINEERING Corp. |
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TR01 | Transfer of patent right |
Effective date of registration: 20190926 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Co-patentee after: China Petroleum Pipeline Engineering Co.,Ltd. Patentee after: CHINA NATIONAL PETROLEUM Corp. Co-patentee after: CHINA PETROLEUM PIPELINE ENGINEERING Corp. Address before: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Co-patentee before: China Petroleum Pipeline Engineering Co.,Ltd. Patentee before: CHINA NATIONAL PETROLEUM Corp. Co-patentee before: DESIGN BRANCH OF CHINA PETROLEUM PIPELINE ENGINEERING Corp. |
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