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公开(公告)号：US3426158A
公开(公告)日：1969-02-04
申请号：US3426158D
申请日：1965-11-23
Applicant: BELL TELEPHONE LABOR INC
Inventor： BROWNE THOMAS E , GAUNT WILMER B JR , GOLDSCHMIDT KARL , VIGLIANTE FRANK S , WILLIFORD OSCAR H , YORK ROBERT K
CPC classification number: H04Q11/0407
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