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公开(公告)号：US2158845A
公开(公告)日：1939-05-16
申请号：US13679337
申请日：1937-04-14
Applicant: GEN ELECTRIC
Inventor： AYER RAYMOND B
IPC: H01C17/28
CPC classification number: H01C17/283 , Y10S403/02 , Y10S403/05 , Y10T403/479
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公开(公告)号：US2154298A
公开(公告)日：1939-04-11
申请号：US10584436
申请日：1936-10-16
Applicant: GEN ELECTRIC
Inventor： AYER RAYMOND B
CPC classification number: H01J1/26 , H01J17/063
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公开(公告)号：US1848092A
公开(公告)日：1932-03-01
申请号：US50375130
申请日：1930-12-20
Applicant: GEN ELECTRIC
Inventor： AYER RAYMOND B
IPC: H02M7/15
CPC classification number: H02M7/151
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