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经营范围
发明名称
JOINT CONNECTION FOR METAL PIPES
摘要
申请公布号
MY7100037(A)
申请公布日期
1971.12.31
申请号
MY19710000037
申请日期
1971.12.31
申请人
VALLOUREC PARIS 8EME
发明人
分类号
E21B17/042;F16L15/04;F16L15/06;(IPC1-7):F16L15/00
主分类号
E21B17/042
代理机构
代理人
主权项
地址
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