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公开(公告)号:US2206963A
公开(公告)日:1940-07-09
申请号:US26527139
申请日:1939-03-31
Applicant: RCA CORP
Inventor: KELLOGG EDWARD W
IPC: G11B7/00
CPC classification number: G11B7/00
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公开(公告)号:US2197050A
公开(公告)日:1940-04-16
申请号:US11844036
申请日:1936-12-31
Applicant: RCA CORP
Inventor: KELLOGG EDWARD W
CPC classification number: H01P5/04
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公开(公告)号:US2122207A
公开(公告)日:1938-06-28
申请号:US2316735
申请日:1935-05-24
Applicant: RCA CORP
Inventor: KELLOGG EDWARD W
IPC: H04B3/04
CPC classification number: H04B3/04
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公开(公告)号:US2097668A
公开(公告)日:1937-11-02
申请号:US4055735
申请日:1935-09-14
Applicant: RCA CORP
Inventor: KELLOGG EDWARD W
IPC: G11B7/00
CPC classification number: G11B7/00
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公开(公告)号:US2092883A
公开(公告)日:1937-09-14
申请号:US705935
申请日:1935-02-18
Applicant: RCA CORP
Inventor: KELLOGG EDWARD W
IPC: G11B15/22
CPC classification number: G11B15/22 , Y10T74/19633
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公开(公告)号:US2080279A
公开(公告)日:1937-05-11
申请号:US74238534
申请日:1934-09-01
Applicant: RCA CORP
Inventor: KELLOGG EDWARD W
IPC: G11B15/50
CPC classification number: G11B15/50 , Y10T74/2126
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公开(公告)号:US2050613A
公开(公告)日:1936-08-11
申请号:US70472533
申请日:1933-12-30
Applicant: RCA CORP
Inventor: KELLOGG EDWARD W
IPC: F16D59/00
CPC classification number: F16D59/00
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公开(公告)号:US2612075A
公开(公告)日:1952-09-30
申请号:US10104249
申请日:1949-06-24
Applicant: RCA CORP
Inventor: KELLOGG EDWARD W , ISOM WARREN R
IPC: G03B1/22
CPC classification number: G03B1/22 , Y10T74/1511
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40.
公开(公告)号:US2499587A
公开(公告)日:1950-03-07
申请号:US72869947
申请日:1947-02-14
Applicant: RCA CORP
Inventor: KELLOGG EDWARD W
IPC: G11B7/00
CPC classification number: G11B7/00
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