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公开(公告)号:US2631197A
公开(公告)日:1953-03-10
申请号:US7907649
申请日:1949-03-01
Applicant: RCA CORP
Inventor: VILKOMERSON BENJAMIN S , STONE FRED B
IPC: H03F1/36
CPC classification number: H03F1/36
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公开(公告)号:US2341484A
公开(公告)日:1944-02-08
申请号:US40481941
申请日:1941-07-31
Applicant: RCA CORP
Inventor: STONE FRED B
IPC: H03D3/30
CPC classification number: H03D3/30
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公开(公告)号:US2451584A
公开(公告)日:1948-10-19
申请号:US62505145
申请日:1945-10-27
Applicant: RCA CORP
Inventor: STONE FRED B
IPC: H03J3/14
CPC classification number: H03J3/14
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公开(公告)号:US2204056A
公开(公告)日:1940-06-11
申请号:US20520538
申请日:1938-04-30
Applicant: RCA CORP
Inventor: STONE FRED B
IPC: H03J3/14
CPC classification number: H03J3/14
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公开(公告)号:US2050474A
公开(公告)日:1936-08-11
申请号:US421335
申请日:1935-01-31
Applicant: RCA CORP
Inventor: STONE FRED B
CPC classification number: H03D7/10 , H01J21/02 , H01J21/20 , H01J2893/003
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公开(公告)号:US2361664A
公开(公告)日:1944-10-31
申请号:US45571642
申请日:1942-08-22
Applicant: RCA CORP
Inventor: STONE FRED B
IPC: H04R19/04
CPC classification number: H04R19/04
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公开(公告)号:US2183206A
公开(公告)日:1939-12-12
申请号:US7137436
申请日:1936-03-28
Applicant: RCA CORP
Inventor: STONE FRED B
IPC: H03J3/14
CPC classification number: H03J3/14
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公开(公告)号:US2047653A
公开(公告)日:1936-07-14
申请号:US71838334
申请日:1934-03-31
Applicant: RCA CORP
Inventor: STONE FRED B
IPC: H03D7/10
CPC classification number: H03D7/10
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