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公开(公告)号：US2647774A
公开(公告)日：1953-08-04
申请号：US11968549
申请日：1949-10-05
Applicant: GEN ELECTRIC
Inventor： NEWBERRY JR STERLING P
CPC classification number: F16J15/32 , H01J5/30 , H01J2893/0046 , Y10S74/10 , Y10S277/913 , Y10T74/18136
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