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经营范围
发明名称
METHOD OF CONNECTING UNDERWATER PIPELINES
摘要
申请公布号
US3517520(A)
申请公布日期
1970.06.30
申请号
USD3517520
申请日期
1968.06.20
申请人
SHELL OIL CO.
发明人
DILLARD S. HAMMETT
分类号
B23K9/00;E21B43/01;F16L1/26;(IPC1-7):F16L1/00
主分类号
B23K9/00
代理机构
代理人
主权项
地址
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