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发明名称
Installation cinématographique avec des boîtes pare-feu comportant des canaux de sécurité
摘要
申请公布号
FR842745(A)
申请公布日期
1939.06.19
申请号
FRD842745
申请日期
1938.08.29
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
分类号
G03B21/18
主分类号
G03B21/18
代理机构
代理人
主权项
地址
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