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公开(公告)号：US3369219A
公开(公告)日：1968-02-13
申请号：US37926264
申请日：1964-06-30
Applicant: IBM
Inventor： PAUL ABRAMSON , BENNETT RICHARD W , CHIN PAO H , MORRIS KRAKINOWSKI , STILWELL JR GEORGE R , WINCHELL ANTHONY H
IPC: G08C15/12
CPC classification number: G08C15/12
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