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发明名称
Perfectionnements à la projection de films à mouvement continu
摘要
申请公布号
FR59575(E)
申请公布日期
1954.06.28
申请号
FRD59575
申请日期
1949.02.28
申请人
SCOPHONY LIMITED
发明人
分类号
G03B41/04
主分类号
G03B41/04
代理机构
代理人
主权项
地址
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