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发明名称
HYDRAULIC PERCUSSION DRILL
摘要
申请公布号
AU7781781(A)
申请公布日期
1982.04.08
申请号
AU19810077817
申请日期
1981.11.24
申请人
COOPER INDUSTRIES, INC.
发明人
JAMES READE MAYER
分类号
B23Q5/26;E21B44/06
主分类号
B23Q5/26
代理机构
代理人
主权项
地址
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