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发明名称
HYDRAULIC ACTUATED PERCUSSIVE MECHANISM
摘要
申请公布号
SU649565(A2)
申请公布日期
1979.02.28
申请号
SU19772535664
申请日期
1977.10.25
申请人
VNII GORNOSPASATELNOGO DELA
发明人
BELOV VIALET S,SU;ZVEREV MIKHAIL F,SU;DMITROV BORIS V,SU;SEMENOV NIKOLAJ V,SU
分类号
E21B1/26;B25D9/00;B25D9/12;(IPC1-7):B25D9/12;E21C3/20
主分类号
E21B1/26
代理机构
代理人
主权项
地址
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