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发明名称
Einführungsvorrichtung für gewickelten Rohrstrang
摘要
申请公布号
DE69220299(T2)
申请公布日期
1998.01.22
申请号
DE19926020299T
申请日期
1992.07.24
申请人
HYDRA-RIG, INC., FORT WORTH, TEX., US
发明人
LANCE, RAYMOND E., FORT WORTH, TEXAS 76120, US
分类号
E21B19/22;(IPC1-7):E21B19/22;B65H51/14
主分类号
E21B19/22
代理机构
代理人
主权项
地址
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