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发明名称
Improved arrangement in Motor Driven Reciprocating Percussion Machines with Exchangeable Tools.
摘要
申请公布号
GB1169400(A)
申请公布日期
1969.11.05
申请号
GB19670006999
申请日期
1967.02.14
申请人
GUSTAV ALBERT BERGMAN
发明人
GUSTAV ALBERT BERGMAN
分类号
B25D17/08;E21B6/06
主分类号
B25D17/08
代理机构
代理人
主权项
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