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发明名称
CONECTOR TUBULAR
摘要
申请公布号
BR8704793(A)
申请公布日期
1988.07.19
申请号
BR19878704793
申请日期
1987.09.17
申请人
CAMERON IRON WORKS, INC.
发明人
GARY L. GALLE;PAUL C. BERNER, JR.
分类号
E21B17/043;E21B17/02;E21B23/04;E21B33/038;E21B43/013;F16L37/00;(IPC1-7):E21B17/02
主分类号
E21B17/043
代理机构
代理人
主权项
地址
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