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1.发明授权Cathode arrangement of an electron microscope for reducing the occurrence of virtualcathodes 失效用于减少虚拟阴极发生的电子显微镜的阴极排列
公开(公告)号：US3363961A
公开(公告)日：1968-01-16
申请号：US50080365
申请日：1965-10-22
Applicant: RCA CORP
Inventor： COLEMAN JOHN W , SCHULER JOSEPH J
IPC: H01J37/063 , H01J37/07
CPC classification number: H01J37/07 , H01J37/063
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