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经营范围
发明名称
FANGKILEANORDNING.
摘要
申请公布号
NO148001(B)
申请公布日期
1983.04.11
申请号
NO19770000053
申请日期
1977.01.07
申请人
BJ-HUGHES INC.,
发明人
MCFADDEN, EDWARD JOSEPH,;STUCKEY, TERRY EDMOND,
分类号
E21B3/04;E21B19/06;E21B19/10;(IPC1-7):E21B19/10
主分类号
E21B3/04
代理机构
代理人
主权项
地址
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