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摘要
申请公布号
US2341414(A)
申请公布日期
1944.02.08
申请号
US19400361552
申请日期
1940.10.17
申请人
POLIVKA GEORGE J
发明人
POLIVKA GEORGE J.
分类号
B01D29/00;B01D39/18
主分类号
B01D29/00
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代理人
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