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发明名称
Verfahren zum Herstellen von Ton- und Lichtbilder enthaltenden positiven Filmen
摘要
申请公布号
DE527278(C)
申请公布日期
1931.06.16
申请号
DE1928B137456D
申请日期
1928.05.12
申请人
BRITISH TALKING PICTURES LTD.
发明人
分类号
G03B31/00
主分类号
G03B31/00
代理机构
代理人
主权项
地址
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