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公开(公告)号:US3176279A
公开(公告)日:1965-03-30
申请号:US79216859
申请日:1959-02-09
Applicant: IBM
Inventor: LIN ANDREW D , WILLARD DENNIS D , JOHNSON DONALD D
CPC classification number: G06K17/0012 , B42F17/34 , G06K13/0843 , G06K17/00 , G06K17/0009 , Y10S221/01
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公开(公告)号:US3036304A
公开(公告)日:1962-05-22
申请号:US75611958
申请日:1958-08-20
Applicant: IBM
Inventor: WILLARD DENNIS D
IPC: G11B5/60
CPC classification number: G11B5/6005
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公开(公告)号:US2869965A
公开(公告)日:1959-01-20
申请号:US47884054
申请日:1954-12-30
Applicant: IBM
Inventor: WILLARD DENNIS D
IPC: G01R13/04
CPC classification number: G01R13/04
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公开(公告)号:US3050692A
公开(公告)日:1962-08-21
申请号:US6922260
申请日:1960-11-14
Applicant: IBM
Inventor: WILLARD DENNIS D
IPC: G11B5/02
CPC classification number: G11B5/02
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公开(公告)号:US2907886A
公开(公告)日:1959-10-06
申请号:US55093155
申请日:1955-12-05
Applicant: IBM
Inventor: WILLARD DENNIS D , MALMROS GUSTAV V A
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公开(公告)号:US2901738A
公开(公告)日:1959-08-25
申请号:US62804156
申请日:1956-12-13
Applicant: IBM
Inventor: WILLARD DENNIS D
IPC: G11B5/55
CPC classification number: G11B5/5547
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公开(公告)号:US3084337A
公开(公告)日:1963-04-02
申请号:US70567157
申请日:1957-12-27
Applicant: IBM
Inventor: WILLARD DENNIS D
CPC classification number: G11B23/0007 , G11B5/012
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公开(公告)号:US2895079A
公开(公告)日:1959-07-14
申请号:US52823155
申请日:1955-08-15
Applicant: IBM
Inventor: WILLARD DENNIS D
IPC: H01J31/26
CPC classification number: H01J31/26
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