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公开(公告)号:US2632059A
公开(公告)日:1953-03-17
申请号:US59677745
申请日:1945-05-30
Applicant: ARMOUR RES FOUND
Inventor: MARVIN CAMRAS
IPC: G11B25/08
CPC classification number: G11B25/08
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32.Device for increasing the effectiveness of the transducing field of a magnetic head 失效
Title translation: 用于提高磁头转换场有效性的装置公开(公告)号:US2615097A
公开(公告)日:1952-10-21
申请号:US7044849
申请日:1949-01-12
Applicant: ARMOUR RES FOUND
Inventor: MARVIN CAMRAS
CPC classification number: G11B5/2657 , G11B5/17
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公开(公告)号:US2612681A
公开(公告)日:1952-10-07
申请号:US72910047
申请日:1947-02-17
Applicant: ARMOUR RES FOUND
Inventor: MARVIN CAMRAS
IPC: G11B5/265
CPC classification number: G11B5/265 , Y10T29/49073
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34.Apparatus for supplying mechanical recording bias to magnetic recorders 失效
Title translation: 用于向磁记录器提供机械记录偏置的装置公开(公告)号:US2587593A
公开(公告)日:1952-03-04
申请号:US69435446
申请日:1946-08-31
Applicant: ARMOUR RES FOUND
Inventor: MARVIN CAMRAS
IPC: G11B5/03
CPC classification number: G11B5/03
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公开(公告)号:US2566441A
公开(公告)日:1951-09-04
申请号:US66588346
申请日:1946-04-29
Applicant: ARMOUR RES FOUND
Inventor: MARVIN CAMRAS
IPC: G11B5/70
CPC classification number: G11B5/70 , Y10S425/033 , Y10S428/90 , Y10T428/2929 , Y10T428/294 , Y10T428/2964 , Y10T428/2969
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公开(公告)号:US2539400A
公开(公告)日:1951-01-30
申请号:US77149647
申请日:1947-08-30
Applicant: ARMOUR RES FOUND
Inventor: MARVIN CAMRAS
IPC: G11B5/127
CPC classification number: G11B5/127
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公开(公告)号:US2484552A
公开(公告)日:1949-10-11
申请号:US54530644
申请日:1944-07-17
Applicant: ARMOUR RES FOUND
Inventor: MARVIN CAMRAS
IPC: G11B23/08
CPC classification number: G11B23/08
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公开(公告)号:US2481904A
公开(公告)日:1949-09-13
申请号:US58331645
申请日:1945-03-17
Applicant: ARMOUR RES FOUND
Inventor: MARVIN CAMRAS
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公开(公告)号:US2481393A
公开(公告)日:1949-09-06
申请号:US59678145
申请日:1945-05-30
Applicant: ARMOUR RES FOUND
Inventor: MARVIN CAMRAS
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公开(公告)号:US2435871A
公开(公告)日:1948-02-10
申请号:US55130044
申请日:1944-08-26
Applicant: ARMOUR RES FOUND
Inventor: MARVIN CAMRAS
IPC: G11B5/03
CPC classification number: G11B5/03
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