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公开(公告)号：US3034102A
公开(公告)日：1962-05-08
申请号：US75344158
申请日：1958-08-06
Applicant: IBM
Inventor： ARMSTRONG PHILIP N , MARCUS MITCHELL P , NELSON RAYMOND J
IPC: G06F7/24
CPC classification number: G06F7/24 , Y10S707/99937
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