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发明名称
Automatisk momenttang-maskin
摘要
申请公布号
NO943255(D0)
申请公布日期
1994.09.02
申请号
NO19940003255
申请日期
1994.09.02
申请人
WEATHERFORD/LAMB INC
发明人
PIETRAS, BERND-GEORG
分类号
E21B19/16;(IPC1-7):E21B19/16
主分类号
E21B19/16
代理机构
代理人
主权项
地址
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