Fernsprechanlage fuer Gesellschaftsanschluesse mit Wahrung des Gespraechsgeheimnisses,申请号DE1927H112330D-传众专利搜索

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发明名称	Fernsprechanlage fuer Gesellschaftsanschluesse mit Wahrung des Gespraechsgeheimnisses
摘要
申请公布号	DE536090(C)	申请公布日期	1931.10.27
申请号	DE1927H112330D	申请日期	1927.07.17
申请人	"FAVAG" FABRIQUE D'APPAREILS ELECTRIQUES S.A.	发明人
分类号	H04Q5/20	主分类号	H04Q5/20
代理机构		代理人
主权项
地址

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