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经营范围
发明名称
FISH LADDER AND ITS CONSTRUCTION
摘要
申请公布号
EP0901540(A1)
申请公布日期
1999.03.17
申请号
EP19970927100
申请日期
1997.06.02
申请人
PETERS, HANS WILHELM
发明人
PETERS, HANS WILHELM
分类号
E02B8/08;(IPC1-7):E02B8/08
主分类号
E02B8/08
代理机构
代理人
主权项
地址
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