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公开(公告)号：US3223971A
公开(公告)日：1965-12-14
申请号：US59464856
申请日：1956-06-28
Applicant: IBM
Inventor： ROWLEY RUSSELL A , VALLEE ADAMS FRANCIS , CLAPPER GENUNG L , ARTHUR HAMBURGEN
IPC: G06F7/02
CPC classification number: G06F7/02
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