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发明名称
Dispositif de sonorisation pour films d'amateurs
摘要
申请公布号
FR1134489(A)
申请公布日期
1957.04.11
申请号
FRD1134489
申请日期
1955.07.26
申请人
发明人
BIGAND PIERRE-AUGUSTE-ALFRE
分类号
G11B15/34
主分类号
G11B15/34
代理机构
代理人
主权项
地址
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