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摘要
申请公布号
US2289539(A)
申请公布日期
1942.07.14
申请号
US19400312494
申请日期
1940.01.05
申请人
THE CUNO ENGINEERING CORPORATION
发明人
CUNO CHARLES H.
分类号
B01D29/46
主分类号
B01D29/46
代理机构
代理人
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