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发明名称
Rock Drill Percussion Mechanism
摘要
申请公布号
CA2161129(A1)
申请公布日期
1994.10.27
申请号
CA19942161129
申请日期
1994.04.20
申请人
LEPPANEN, JARMO UOLEVI;BRIGGS, ROGER ROBARTS
发明人
LEPPANEN, JARMO UOLEVI;BRIGGS, ROGER ROBARTS
分类号
B25D9/16;B25D9/12;B25D9/14;B25D9/20;B28D1/26;E21B1/00;E21B1/26
主分类号
B25D9/16
代理机构
代理人
主权项
地址
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