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发明名称
Verdunkelungstasche fuer Mattglasscheiben mit Spiegeleinrichtungen
摘要
申请公布号
DE508048(C)
申请公布日期
1930.09.23
申请号
DENDATE037758D
申请日期
申请人
LEO EMMERICH
发明人
分类号
G03B19/12
主分类号
G03B19/12
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