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发明名称
RUFVORRICHTUNG FÜR KREDITKARTENFERNSPRECHGERÄT IN EINEM FERNSPRECHNETZ UND BETRIEBSVERFAHREN
摘要
申请公布号
AT135517(T)
申请公布日期
1996.03.15
申请号
AT19910311341T
申请日期
1991.12.05
申请人
AT&T CORP.
发明人
AHEARN, KATHLEEN MARY;ALBAL, NANDAKISHORE ANANT;COTTRELL, DANIEL DAVID;HARRIS, RICHARD MARK;LADIEU-WALTON, JULIE MAIRIE;RAZAVI, HAMID CYRUS
分类号
H04M15/00;G07F7/08;H04M17/00;H04M17/02;(IPC1-7):H04M17/02
主分类号
H04M15/00
代理机构
代理人
主权项
地址
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