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摘要
申请公布号
US2296486(A)
申请公布日期
1942.09.22
申请号
US19390295409
申请日期
1939.09.18
申请人
ZAHN JR FRANKLIN
发明人
JR. FRANKLIN ZAHN,
分类号
B01D29/00;B01D35/00
主分类号
B01D29/00
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代理人
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