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发明名称
ROHRMUENDUNGSWAND FUER DREINAGEGRAEBEN
摘要
申请公布号
DE2857216(A1)
申请公布日期
1980.04.03
申请号
DE19782857216
申请日期
1978.08.10
申请人
H.H. ROBERTSON CO.
发明人
JONES,DENNIS
分类号
E03F3/00;E01F5/00;E02B11/00;E03F1/00;(IPC1-7):E02B11/00
主分类号
E03F3/00
代理机构
代理人
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