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公开(公告)号:US3060322A
公开(公告)日:1962-10-23
申请号:US6631060
申请日:1960-10-31
Applicant: IBM
Inventor: ERICKSON JOHN J , NALLIN EUGENE J
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公开(公告)号:FR2315717A1
公开(公告)日:1977-01-21
申请号:FR7615003
申请日:1976-05-13
Applicant: IBM
Inventor: ERICKSON JOHN J , LELAND HAROLD L , MATHISEN EINAR S
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