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发明名称
Liquid treatment
摘要
申请公布号
US2465980(A)
申请公布日期
1949.03.29
申请号
US19440548072
申请日期
1944.08.04
申请人
GRAVER TANK & MFG. CO., INC.
发明人
PRAGER FRANK D.;WELTER ROY
分类号
C02F1/52
主分类号
C02F1/52
代理机构
代理人
主权项
地址
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