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发明名称
Stigerörstrammer for stramming av et stigerör
摘要
申请公布号
NO179980(C)
申请公布日期
1997.01.22
申请号
NO19940000124
申请日期
1994.01.13
申请人
CONOCO INC
发明人
MYERS, RODERICK J.;DELGADO, JORGE H.
分类号
E21B;E21B19/09;(IPC1-7):E21B19/09
主分类号
E21B
代理机构
代理人
主权项
地址
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