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发明名称
PERCUSSIVE ACTION MACHINE
摘要
申请公布号
GB8529669(D0)
申请公布日期
1986.01.08
申请号
GB19850029669
申请日期
1985.12.02
申请人
INST GORNOGO DELA SIBIRSKOGO O
发明人
分类号
E21B7/26;B25D9/26;E02F5/16;E02F5/18;E21B4/14;(IPC1-7):E02F/
主分类号
E21B7/26
代理机构
代理人
主权项
地址
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