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经营范围
发明名称
UNDERGROUND PIPELINE
摘要
申请公布号
PL257733(A2)
申请公布日期
1986.12.02
申请号
PL19860257733
申请日期
1986.01.30
申请人
POLITECHNIKA WROCLAWSKA
发明人
KOLONKO ANDRZEJ
分类号
F16L57/00;F17D;(IPC1-7):F17D/
主分类号
F16L57/00
代理机构
代理人
主权项
地址
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