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公开(公告)号：US3366818A
公开(公告)日：1968-01-30
申请号：US46947765
申请日：1965-07-06
Applicant: IBM
Inventor： BRON WALTER E , HELLER WILLIAM R , ROLAND PAUL A
IPC: H01J29/14
CPC classification number: H01J29/14 , Y10S428/922
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公开(公告)号：CA773219A
公开(公告)日：1967-12-05
申请号：CA773219D
Applicant: IBM
Inventor： BRON WALTER E , HELLER WILLIAM R , ROLAND PAUL A
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