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发明名称
Anordning til Frembringelse af Lys, hvis Intensitet forandres i Overensstemmelse med Lydsvingninger eller lignende Svingninger.
摘要
申请公布号
DK42448(C)
申请公布日期
1930.06.23
申请号
DKD42448
申请日期
1929.05.25
申请人
TALEMASKINEFABRIKANTER THE GRAMOPHONE COMPANY, LIMITED
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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