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公开(公告)号:US2860759A
公开(公告)日:1958-11-18
申请号:US48742555
申请日:1955-02-10
Applicant: IBM
Inventor: CLARK JOHN B
IPC: B41J25/18
CPC classification number: B41J25/18
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公开(公告)号:US3105963A
公开(公告)日:1963-10-01
申请号:US79611359
申请日:1959-02-27
Applicant: IBM
Inventor: STEVENS LOUIS D , CLARK JOHN B
CPC classification number: G11B5/5547 , G11B5/48 , G11B5/5521
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公开(公告)号:US3057967A
公开(公告)日:1962-10-09
申请号:US73678558
申请日:1958-05-21
Applicant: IBM
Inventor: CLARK JOHN B
CPC classification number: G11B5/17 , G11B5/1278 , G11B5/2452
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