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公开(公告)号：US2887618A
公开(公告)日：1959-05-19
申请号：US45989154
申请日：1954-10-04
Applicant: GEN ELECTRIC
Inventor： HARVEY REID EUGENE
CPC classification number: F04F9/00 , H01J13/28 , H01J2893/0086
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