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发明名称
TRANSPARENT MIT FARBENWECHSEL FUER REKLAMEZWECKE.
摘要
申请公布号
DE1622990(U)
申请公布日期
1951.05.10
申请号
DE195000C0344U
申请日期
1950.08.23
申请人
GERDA CZERNIAK
发明人
GERDA CZERNIAK
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主分类号
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