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发明名称
Dispositif perfectionné d'entraînement du film pour appareils de projection cinématographique et appareils munis de ce dispositif
摘要
申请公布号
FR831039(A)
申请公布日期
1938.08.18
申请号
FRD831039
申请日期
1937.04.01
申请人
PATHE CINEMA
发明人
分类号
G03B1/22
主分类号
G03B1/22
代理机构
代理人
主权项
地址
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