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发明名称
Aeration unit and support therefor
摘要
申请公布号
US2521454(A)
申请公布日期
1950.09.05
申请号
US19450610914
申请日期
1945.08.17
申请人
CHICAGO PUMP COMPANY
发明人
DRESSLER MAX
分类号
C02F3/20
主分类号
C02F3/20
代理机构
代理人
主权项
地址
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