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发明名称
Perfectionnements aux filtres
摘要
申请公布号
FR970779(A)
申请公布日期
1951.01.09
申请号
FRD970779
申请日期
1948.08.18
申请人
发明人
MEYER PAUL
分类号
B01D29/00;B01D33/00;B01D35/22
主分类号
B01D29/00
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代理人
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