Duplicateur braille à échangeur de fiches libres,申请号FRD1079928-传众专利搜索

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发明名称	Duplicateur braille à échangeur de fiches libres
摘要
申请公布号	FR1079928(A)	申请公布日期	1954.12.03
申请号	FRD1079928	申请日期	1953.04.07
申请人		发明人	ESPINASSE MARCEL
分类号	G09B21/02	主分类号	G09B21/02
代理机构		代理人
主权项
地址

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