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发明名称
WAAGERECHTER LANGSTRAGER FUR EINE GRABENVERBAUVORRICHTUNG
摘要
申请公布号
PT71869(B)
申请公布日期
1981.10.15
申请号
PT19800071869
申请日期
1980.10.03
申请人
JOSEF KRINGS
发明人
分类号
E02D17/08;(IPC1-7):E02D17/08
主分类号
E02D17/08
代理机构
代理人
主权项
地址
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