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公开(公告)号：US2413766A
公开(公告)日：1947-01-07
申请号：US55404744
申请日：1944-09-14
Applicant: NAT UNION RADIO CORP
Inventor： HONZL OTTO G
IPC: H01J5/24
CPC classification number: H01J5/24 , H01J2893/0039
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