Appareil de lecture de poche pour microfilms,申请号FRD908370-传众专利搜索

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发明名称	Appareil de lecture de poche pour microfilms
摘要
申请公布号	FR908370(A)	申请公布日期	1946.04.08
申请号	FRD908370	申请日期	1944.06.12
申请人	COMPAGNIE FRANCAISE THOMSON-HOUSTON	发明人
分类号	G03B21/11	主分类号	G03B21/11
代理机构		代理人
主权项
地址

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