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公开(公告)号：US3288919A
公开(公告)日：1966-11-29
申请号：US24366862
申请日：1962-12-10
Applicant: BELL TELEPHONE LABOR INC
Inventor： ABBOTT HENRY H , FRACASSI RENATO D , HUGHES EDWARD G , LONNQUIST CHESTER W
IPC: H04L27/26
CPC classification number: H04L27/26
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