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发明名称
WELDING SUBMERGED PIPES
摘要
申请公布号
GB1545120(A)
申请公布日期
1979.05.02
申请号
GB19760028746
申请日期
1976.07.09
申请人
COMP FRANCAISE DES PETROLES
发明人
分类号
B23K9/00;F16L1/26;(IPC1-7):F16L1/00;F16L13/02
主分类号
B23K9/00
代理机构
代理人
主权项
地址
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