Secondary electron emitter,申请号US19490085161-传众专利搜索

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发明名称	Secondary electron emitter
摘要
申请公布号	US2530946(A)	申请公布日期	1950.11.21
申请号	US19490085161	申请日期	1949.04.02
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	CHESSMAN LEONARD E.;MENDENHALL HALLAM E.
分类号	H01J1/32;H01J9/12	主分类号	H01J1/32
代理机构		代理人
主权项
地址

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