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发明名称
Hydroelectric power generator
摘要
申请公布号
US1922055(A)
申请公布日期
1933.08.15
申请号
US19310514027
申请日期
1931.02.06
申请人
FREDERICK MARX KARL
发明人
MARX KARL FREDERICK
分类号
E02B9/08
主分类号
E02B9/08
代理机构
代理人
主权项
地址
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