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发明名称
Water purification
摘要
申请公布号
US2219616(A)
申请公布日期
1940.10.29
申请号
US19390291272
申请日期
1939.08.21
申请人
BRADSHAW NATHAN D;VARDEMAN BRADSHAW JAMES
发明人
BRADSHAW NATHAN D.;BRADSHAW JAMES VARDEMAN
分类号
C02F1/52;C02F1/76
主分类号
C02F1/52
代理机构
代理人
主权项
地址
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