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发明名称
Adjustable mounting for rock drills
摘要
申请公布号
US3338316(A)
申请公布日期
1967.08.29
申请号
US19640422342
申请日期
1964.12.30
申请人
JOY MANUFACTURING COMPANY
发明人
THOMPSON CHARLES T.
分类号
B25D17/30;E21B7/02;E21B15/04;E21D9/00
主分类号
B25D17/30
代理机构
代理人
主权项
地址
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