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Mechanical constant-resistance single prop continuous prop lifting pre-tightening device and method
- Release time:2023-09-01
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School Sign:
第一单位Disigner of the Invention:
puhai,jufeng,zhangkai,wuyu,JiangFeng LIU,吴鹏,樊进城,冯志威Type of Patent:
国内State of Patent:
专利授权Application Number:
10,,844,717Number of Inventors:
1Service Invention or Not:
noApplication Date:
2019-03-12Authorization Date:
2020-09-30First Author:
chenyanlong