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发明名称
Adapter device for percussion drill
摘要
申请公布号
US3259403(A)
申请公布日期
1966.07.05
申请号
US19650437179
申请日期
1965.03.04
申请人
SANDVIKENS JERNVERKS AKTIEBOLAG
发明人
HJALSTEN JOHN ANDERS;NORDIN BENGT ALLAN
分类号
E21B6/00;E21B7/20;E21B21/02
主分类号
E21B6/00
代理机构
代理人
主权项
地址
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