Indicator devices or directories for all uses and particularly for telephone call numbers,申请号GB19370021412-传众专利搜索

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发明名称	Indicator devices or directories for all uses and particularly for telephone call numbers
摘要
申请公布号	GB485434(A)	申请公布日期	1938.05.19
申请号	GB19370021412	申请日期	1937.08.03
申请人	JEANNE LECLERE	发明人
分类号	H04M1/21	主分类号	H04M1/21
代理机构		代理人
主权项
地址

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