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经营范围
发明名称
Process of treating sewage
摘要
申请公布号
US2590964(A)
申请公布日期
1952.04.01
申请号
US19470776195
申请日期
1947.09.26
申请人
ORIN HALVORSON H
发明人
HALVORSON H. ORIN
分类号
C02F3/04;C02F11/12
主分类号
C02F3/04
代理机构
代理人
主权项
地址
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