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一种用于由下向上钻挖的钻头支撑装置
- Release time:2023-09-01
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Affilication of Author(s):
机电工程学院Scope of patent:
国内School Sign:
第一单位Disigner of the Invention:
王欧国,蔡芝源,王永信,赵慧贺,江林恒Type of Patent:
国内State of Patent:
专利授权Application Number:
202010304067.xService Invention or Not:
noApplication Date:
2020-04-17Authorization Date:
2021-09-07First Author:
jianghongxiang
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