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公开(公告)号：US3517173A
公开(公告)日：1970-06-23
申请号：US3517173D
申请日：1966-12-29
Applicant: BELL TELEPHONE LABOR INC
Inventor： GILMARTIN MICHAEL J JR , SHIVELY RICHARD R
CPC classification number: G06F7/548 , G06F17/142
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