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公开(公告)号：US2336774A
公开(公告)日：1943-12-14
申请号：US40728841
申请日：1941-08-18
Applicant: GEN ELECTRIC X RAY CORP
Inventor： BRACKNEY HOWARD W , GOSLING JOSEPH B
CPC classification number: H01J29/624 , H01J5/06
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