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发明名称
UNDERGROUND PIPELINES
摘要
申请公布号
GB1591501(A)
申请公布日期
1981.06.24
申请号
GB19780008177
申请日期
1978.03.01
申请人
SOC PLYMOUTH FRANCAISE
发明人
分类号
F16L1/11;G01V15/00;(IPC1-7):F16L55/00;F16L1/02
主分类号
F16L1/11
代理机构
代理人
主权项
地址
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