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经营范围
发明名称
Water-tight seals for dams, etc
摘要
申请公布号
GB715126(A)
申请公布日期
1954.09.08
申请号
GB19510017722
申请日期
1951.07.26
申请人
WILHELM DEGEN
发明人
分类号
E02B7/06
主分类号
E02B7/06
代理机构
代理人
主权项
地址
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