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公开(公告)号：US2504224A
公开(公告)日：1950-04-18
申请号：US73273647
申请日：1947-03-06
Applicant: RADIO ELECTR SOC FR
Inventor： PIERRE PATRIARCHE
IPC: H01J21/02
CPC classification number: H01J21/02
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公开(公告)号：US2684777A
公开(公告)日：1954-07-27
申请号：US74801247
申请日：1947-05-14
Applicant: RADIO ELECTR SOC FR
Inventor： ANDRE DANZIN , EDOUARD DESPOIS , PIERRE PATRIARCHE
IPC: H01J5/30
CPC classification number: H01J5/30 , H01J2893/0047
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