Improvements relating to call meters for telephone systems,申请号GB19360015579-传众专利搜索

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发明名称	Improvements relating to call meters for telephone systems
摘要
申请公布号	GB476232(A)	申请公布日期	1937.12.06
申请号	GB19360015579	申请日期	1936.06.04
申请人	"SODECO" SOCIETE DES COMPTEURS DE GENEVE	发明人
分类号	H04M15/28;H04M17/02	主分类号	H04M15/28
代理机构		代理人
主权项
地址

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