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发明名称
Drill mounting
摘要
申请公布号
US3057416(A)
申请公布日期
1962.10.09
申请号
US19600055341
申请日期
1960.09.12
申请人
INGERSOLL-RAND COMPANY
发明人
CARLSON EVERETT C.;ADAMS JOHN W.
分类号
E21B15/00
主分类号
E21B15/00
代理机构
代理人
主权项
地址
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