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公开(公告)号：US3311888A
公开(公告)日：1967-03-28
申请号：US27280263
申请日：1963-04-12
Applicant: IBM
Inventor： MAURICE HANAN , PALERMO FRANK P , NORMAN RAVER , GEZA SCHAY
IPC: G06F17/30
CPC classification number: G06F17/30949
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