Apparatus for selective control and indication systems,申请号US19430507877-传众专利搜索

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发明名称	Apparatus for selective control and indication systems
摘要
申请公布号	US2409719(A)	申请公布日期	1946.10.22
申请号	US19430507877	申请日期	1943.10.27
申请人	THE UNION SWITCH & SIGNAL COMPANY	发明人	SORENSEN ANDREW J.
分类号	H04Q9/10	主分类号	H04Q9/10
代理机构		代理人
主权项
地址

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