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经营范围
发明名称
UNDERWATER PIPELINE CONNECTION
摘要
申请公布号
IE38002(L)
申请公布日期
1973.10.27
申请号
IE19720001742
申请日期
1972.12.13
申请人
ESSO PRODUCTION RESEARCH CO.
发明人
分类号
E21B43/013;F16L37/00;(IPC1-7):F16L1/04;E02D29/06
主分类号
E21B43/013
代理机构
代理人
主权项
地址
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