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发明名称
VORRICHTUNG ZUM VERBINDEN UND LÖSEN GESCHRAUBTER TEILE
摘要
申请公布号
DE69307316(T2)
申请公布日期
1997.08.28
申请号
DE19936007316T
申请日期
1993.05.28
申请人
WEATHERFORD/LAMB, INC., HOUSTON, TEX., US
发明人
SCHULZE-BECKINGHAUSEN, JOERG-ERICH, D-3008 GARBSEN 4, DE
分类号
E21B19/16;(IPC1-7):E21B19/16;B23P19/06
主分类号
E21B19/16
代理机构
代理人
主权项
地址
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