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公开(公告)号：US3435428A
公开(公告)日：1969-03-25
申请号：US3435428D
申请日：1963-12-31
Applicant: IBM
Inventor： BERTELSEN BRUCE I , HOTTENROTT HANS G , KUMP HERBERT J
CPC classification number: G11C7/00 , G11C11/14 , Y10T29/49069
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