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发明名称
Système d'enregistrement sonore sur film
摘要
申请公布号
FR989851(A)
申请公布日期
1951.09.14
申请号
FRD989851
申请日期
1949.06.28
申请人
WESTERN ELECTRIC COMPANY, INCORPORATED
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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