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公开(公告)号：US3476561A
公开(公告)日：1969-11-04
申请号：US3476561D
申请日：1965-08-30
Applicant: IBM
Inventor： BERTELSEN BRUCE I , REIMER ARNOLD E
CPC classification number: G11C11/06085 , C23F1/02 , G03F7/095 , G03F7/2022 , H05K3/064 , H05K2203/0505 , H05K2203/0577
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