Cathode beam tube and velocity control electrode,申请号US19410417326-传众专利搜索

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发明名称	Cathode beam tube and velocity control electrode
摘要
申请公布号	US2408809(A)	申请公布日期	1946.10.08
申请号	US19410417326	申请日期	1941.10.31
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	PIERCE JOHN R.
分类号	H01J25/12	主分类号	H01J25/12
代理机构		代理人
主权项
地址

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