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公开(公告)号：US3271524A
公开(公告)日：1966-09-06
申请号：US14117861
申请日：1961-09-27
Applicant: BELL TELEPHONE LABOR INC
Inventor： ALLEN THEODORE E , BAKER WALTER R , BIDLACK RICHARD H , GARDNER KARL N , MULLAN JR WILLIAM E , OZENBERGER MILTON E , DAMME LOUIS E VAN
IPC: H04Q3/00
CPC classification number: H04Q3/0004
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