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一种具有定向高速磨料射流超前切缝功能的振动式硬岩截割机构（美国）
- Release time:2023-09-01
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School Sign:
第一单位Disigner of the Invention:
胡正伟,LIU SongyongType of Patent:
国内State of Patent:
专利授权Application Number:
US10895153(B2)Service Invention or Not:
noApplication Date:
2018-09-14Authorization Date:
2021-01-19First Author:
jianghongxiang
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