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发明名称
PIPE COUPLER
摘要
申请公布号
US4010966(A)
申请公布日期
1977.03.08
申请号
US19760668205
申请日期
1976.03.18
申请人
VANDEN BOSCH, PAUL G.
发明人
VANDEN BOSCH, PAUL G.
分类号
E21B17/046;F16L21/08;F16L25/00;F16L37/252;(IPC1-7):F16L21/00
主分类号
E21B17/046
代理机构
代理人
主权项
地址
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