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发明名称
Dispositif d'avancement pour les porteurs en forme de bandes des enregistrements de sons ou d'images, notamment pour les films sonores
摘要
申请公布号
FR701159(A)
申请公布日期
1931.03.12
申请号
FRD701159
申请日期
1930.08.12
申请人
SIEMENS & HALSKE AKTIEN-GESELLSCHAFT
发明人
分类号
主分类号
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