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发明名称
Ortsbeweglicher Klappmast fuer Tiefbohrzwecke
摘要
申请公布号
DE1008226(B)
申请公布日期
1957.05.16
申请号
DE1953M017951
申请日期
1953.03.28
申请人
LEE C. MOORE CORPORATION
发明人
IDDINGS CHARLES DEWEY;CAMPBELL ERWIN ALLISON;WOOLSLAYER HOMER JOSEPH
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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