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公开(公告)号：US3106944A
公开(公告)日：1963-10-15
申请号：US11422661
申请日：1961-06-01
Applicant: ASS ELECT IND
Inventor： JOHN COLQUHOUN
IPC: H01J19/00
CPC classification number: H01J19/00 , H01J2893/0026 , Y10T83/4483
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