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发明名称
STRIKING MECHANISM
摘要
申请公布号
SU1686151(A1)
申请公布日期
1991.10.23
申请号
SU19894732892
申请日期
1989.08.29
申请人
VORKUTINSKIJ LE GORNOGO I IM.G.V.PLEKHANOVA
发明人
ZAGRIVNYJ EDUARD A,SU
分类号
E21B1/14;B25D11/10
主分类号
E21B1/14
代理机构
代理人
主权项
地址
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