Schaltung für ein selbsttätiges Fernmeldesystem mit wenigstens zwei in Kaskade geschalteten Stufen von Gruppenwählern,申请号ATD177454-传众专利搜索

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发明名称	Schaltung für ein selbsttätiges Fernmeldesystem mit wenigstens zwei in Kaskade geschalteten Stufen von Gruppenwählern
摘要
申请公布号	AT177454(B)	申请公布日期	1954.02.10
申请号	ATD177454	申请日期	1952.07.31
申请人	N. V. PHILIPS' GLOEILAMPENFABRIEKEN	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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