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发明名称
Tonfilm und Verfahren zum Aufzeichnen von Tönen auf photographischem Wege.
摘要
申请公布号
CH167553(A)
申请公布日期
1934.02.28
申请号
CHD167553
申请日期
1932.11.14
申请人
POULSEN,ARNOLD;PETERSEN,AXEL CARL GEORG
发明人
POULSEN,ARNOLD;GEORG PETERSEN,AXEL CARL
分类号
G11B7/00
主分类号
G11B7/00
代理机构
代理人
主权项
地址
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