Control and trigger circuit for telephone systems and the like,申请号US19440555850-传众专利搜索

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发明名称	Control and trigger circuit for telephone systems and the like
摘要
申请公布号	US2409145(A)	申请公布日期	1946.10.08
申请号	US19440555850	申请日期	1944.09.26
申请人	STROMBERG-CARLSON COMPANY	发明人	MORRIS FRANK A.
分类号	H04Q3/00	主分类号	H04Q3/00
代理机构		代理人
主权项
地址

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