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发明名称
DRAINERINGSSYSTEEM
摘要
申请公布号
BE829087(A2)
申请公布日期
1975.09.01
申请号
BE19754004345
申请日期
1975.05.14
申请人
发明人
分类号
E01C13/08;E02B11/00;E02D3/10;(IPC1-7):E02B/
主分类号
E01C13/08
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代理人
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