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公开(公告)号：US3378714A
公开(公告)日：1968-04-16
申请号：US60831467
申请日：1967-01-10
Applicant: THOMSON HOUSTON COMP FRANCAISE
Inventor： GUYOT LUCIEN F , DRIARD BERTRAND M , FRANCIS SIROU
IPC: H01J31/50
CPC classification number: H01J31/501
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