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发明名称
Procédé pour l'enregistrement des sons sur film cinématographique
摘要
申请公布号
FR676391(A)
申请公布日期
1930.02.21
申请号
FRD676391
申请日期
1929.06.08
申请人
发明人
JOHNSON FRANCIS-MORTON;FAUCON ADELAIDE
分类号
G03B31/00
主分类号
G03B31/00
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代理人
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