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发明名称
ABLENKKEILEINHEIT
摘要
申请公布号
DE69308151(D1)
申请公布日期
1997.03.27
申请号
DE19936008151
申请日期
1993.09.16
申请人
WEATHERFORD U.S. INC., HOUSTON, TEX., US
发明人
CARTER, THURMAN, B., PEARLAND, TX 77581, US;SCHNITKER, MARK, W., FRIENDSWOOD, TX 77546, US
分类号
E21B7/06;E21B7/08;(IPC1-7):E21B7/06
主分类号
E21B7/06
代理机构
代理人
主权项
地址
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