Châssis porte-négatif pour agrandisseurs photographiques,申请号FRD848851-传众专利搜索

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发明名称	Châssis porte-négatif pour agrandisseurs photographiques
摘要
申请公布号	FR848851(A)	申请公布日期	1939.11.08
申请号	FRD848851	申请日期	1939.01.14
申请人	DURST	发明人
分类号	G03B27/62	主分类号	G03B27/62
代理机构		代理人
主权项
地址

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