Système de télégraphie et téléphonie simultanées indépendantes entre elles, dit <<phono-typie>>, et modes d'application du dit système,申请号FRD834664-传众专利搜索

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发明名称	Système de télégraphie et téléphonie simultanées indépendantes entre elles, dit <<phono-typie>>, et modes d'application du dit système
摘要
申请公布号	FR834664(A)	申请公布日期	1938.11.29
申请号	FRD834664	申请日期	1937.08.06
申请人	TRANSMISSIONS LOTH-HAVAS	发明人	LOTH WILLIAM;DREYFUS ROBERT
分类号	H04L12/12;H04L27/10;H04M11/06	主分类号	H04L12/12
代理机构		代理人
主权项
地址

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