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发明名称
Percussion tool
摘要
申请公布号
US3379261(A)
申请公布日期
1968.04.23
申请号
US19660552219
申请日期
1966.05.23
申请人
LEO A. MARTINI
发明人
MARTINI LEO A.
分类号
E21B4/14
主分类号
E21B4/14
代理机构
代理人
主权项
地址
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