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公开(公告)号：US2989733A
公开(公告)日：1961-06-20
申请号：US55965556
申请日：1956-01-17
Applicant: IBM
Inventor： DROUGARD MAURICE E , HUIBREGTSE EDWARD J , YOUNG DONALD R
IPC: G11C11/22
CPC classification number: G11C11/22
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公开(公告)号：CA595213A
公开(公告)日：1960-03-29
申请号：CA595213D
Applicant: IBM
Inventor： YOUNG DONALD R , HUIBREGTSE EDWARD J , DROUGARD MAURICE E
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