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公开(公告)号:US2940047A
公开(公告)日:1960-06-07
申请号:US53423255
申请日:1955-09-14
Applicant: BURROUGHS CORP
Inventor: BETHKE JOHN R , DRISCOLL ROBERT R , SAUL KUCHINSKY
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公开(公告)号:US2833949A
公开(公告)日:1958-05-06
申请号:US55285055
申请日:1955-12-13
Applicant: BURROUGHS CORP
Inventor: DRISCOLL ROBERT R
IPC: H01J17/49
CPC classification number: H01J17/49 , H01J2893/0069 , Y10S116/35
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