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3.Code to voice inquiry system and twospeed multi-unit buffer mechanism 失效
Title translation: 代码语音查询系统和twospeed多单元缓冲机制公开(公告)号:US3253263A
公开(公告)日:1966-05-24
申请号:US10180861
申请日:1961-04-10
Applicant: IBM
Inventor: LEE LYLE H , MULVANY RICHARD B , TRESEDER ROBERT C
CPC classification number: H04L12/1804 , H04M3/493
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