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发明名称
Drill mounting
摘要
申请公布号
US3334849(A)
申请公布日期
1967.08.08
申请号
US19660527150
申请日期
1966.02.14
申请人
INGERSOLL-RAND WORLD TRADE LIMITED
发明人
BRONDER HERBERT
分类号
E21B7/02
主分类号
E21B7/02
代理机构
代理人
主权项
地址
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