Signal translating system and apparatus,申请号US19390255898-传众专利搜索

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发明名称	Signal translating system and apparatus
摘要
申请公布号	US2250528(A)	申请公布日期	1941.07.29
申请号	US19390255898	申请日期	1939.02.11
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	GRAY FRANK
分类号	H01J43/02	主分类号	H01J43/02
代理机构		代理人
主权项
地址

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