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经营范围
发明名称
Water purification
摘要
申请公布号
US2194781(A)
申请公布日期
1940.03.26
申请号
US19360114020
申请日期
1936.12.03
申请人
ANDRUS ORRIN E
发明人
ANDRUS ORRIN E.
分类号
C02F1/00;C02F1/28;C02F1/461;C02F1/463;C02F9/00
主分类号
C02F1/00
代理机构
代理人
主权项
地址
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