Dispositif de guidage d'un film ou d'une pellicule devant une fenêtre de projection,申请号FRD724156-传众专利搜索

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发明名称	Dispositif de guidage d'un film ou d'une pellicule devant une fenêtre de projection
摘要
申请公布号	FR724156(A)	申请公布日期	1932.04.22
申请号	FRD724156	申请日期	1931.10.01
申请人	N. V. PHILIPS' GLOEILAMPENFABRIEKEN	发明人
分类号	G03B1/42	主分类号	G03B1/42
代理机构		代理人
主权项
地址

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