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发明名称
Staubsaugevorrichtung mit mehreren Filtern
摘要
申请公布号
DE589733(C)
申请公布日期
1933.12.16
申请号
DE1932E042314D
申请日期
1932.01.19
申请人
CARL ECKERT
发明人
分类号
A47L9/20
主分类号
A47L9/20
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