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公开(公告)号：US2506431A
公开(公告)日：1950-05-02
申请号：US58126045
申请日：1945-03-06
Applicant: ATOMIC ENERGY COMMISSION
Inventor： PERRET WILLIAM R , THOMAS DAVIS
IPC: H01J41/06
CPC classification number: H01J41/06
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