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经营范围
发明名称
Synchronisation sonore des films de format réduit
摘要
申请公布号
FR62130(E)
申请公布日期
1955.06.10
申请号
FRD62130
申请日期
1951.09.15
申请人
发明人
PELISSIER CLAUDE-CHARLES
分类号
G03B31/00
主分类号
G03B31/00
代理机构
代理人
主权项
地址
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