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经营范围
发明名称
Hydraulisk slagröranordning for kveilerör
摘要
申请公布号
NO952233(D0)
申请公布日期
1995.06.06
申请号
NO19950002233
申请日期
1995.06.06
申请人
HAILEY, CHARLES D.;BEAGLE, RONALD M.
发明人
HAILEY, CHARLES D.;BEAGLE, RONALD M.
分类号
E21B31/113;(IPC1-7):E21B
主分类号
E21B31/113
代理机构
代理人
主权项
地址
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