Dispositif pour faciliter la circulation des aveugles,申请号FRD948165-传众专利搜索

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发明名称	Dispositif pour faciliter la circulation des aveugles
摘要
申请公布号	FR948165(A)	申请公布日期	1949.07.25
申请号	FRD948165	申请日期	1947.06.18
申请人		发明人	DLUGACZ BENJAMIN
分类号	A61H3/06	主分类号	A61H3/06
代理机构		代理人
主权项
地址

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