Perfectionnements aux branches de lunettes en matière plastique,申请号FRD899544-传众专利搜索

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发明名称	Perfectionnements aux branches de lunettes en matière plastique
摘要
申请公布号	FR899544(A)	申请公布日期	1945.06.04
申请号	FRD899544	申请日期	1943.11.10
申请人	L. CRETIN-BILLET & FILS	发明人
分类号	G02C5/18	主分类号	G02C5/18
代理机构		代理人
主权项
地址

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