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发明名称
UNDERGROUND PIPELINE
摘要
申请公布号
SU642562(A1)
申请公布日期
1979.01.15
申请号
SU19762325966
申请日期
1976.02.17
申请人
CHERNOV FEDOR V,SU
发明人
CHERNOV FEDOR V,SU
分类号
F16L13/04;(IPC1-7):F16L13/04
主分类号
F16L13/04
代理机构
代理人
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地址
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