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发明名称
Hochschwenkbares Bohrgeruest
摘要
申请公布号
DE816836(C)
申请公布日期
1951.10.15
申请号
DE1950M005449
申请日期
1950.08.03
申请人
LEE C. MOORE CORPORATION
发明人
WOOLSLAYER HOMER JOSEPH;CAMPBELL ERWIN ALLISON
分类号
E21B15/00
主分类号
E21B15/00
代理机构
代理人
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地址
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