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发明名称
RECOVERABLE SLEEVE ASSEMBLY FOR PIPE JOINT
摘要
申请公布号
EP0420961(B1)
申请公布日期
1993.01.27
申请号
EP19900906302
申请日期
1990.04.06
申请人
N.V. RAYCHEM S.A.
发明人
VAN BEERSEL, JOZEF, FRANS, LOUISA
分类号
E21B7/20;E21B7/04;E21B17/08;F16L1/028;F16L58/18
主分类号
E21B7/20
代理机构
代理人
主权项
地址
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