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发明名称
METHODS OF REPAIRING UNDERWATER PIPELINIES
摘要
申请公布号
GB1572171(A)
申请公布日期
1980.07.23
申请号
GB19760017849
申请日期
1976.04.30
申请人
BOC LTD
发明人
分类号
B23K9/00;B23K9/028;F16L1/26;(IPC1-7):F16L13/02;B23K31/00
主分类号
B23K9/00
代理机构
代理人
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地址
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