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公开(公告)号：US2092874A
公开(公告)日：1937-09-14
申请号：US69472133
申请日：1933-10-23
Applicant: RCA CORP
Inventor： BURNSIDE DON G
CPC classification number: H03F3/28
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公开(公告)号：US2045290A
公开(公告)日：1936-06-23
申请号：US69111533
申请日：1933-09-27
Applicant: RCA CORP
Inventor： BURNSIDE DON G
IPC: H03D1/10
CPC classification number: H03D1/10
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