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发明名称
Mit Wertkarten zu benutzende Zusatzeinheit für Hausfernsprechgerät
摘要
申请公布号
DE69129832(T2)
申请公布日期
1999.04.08
申请号
DE19916029832T
申请日期
1991.10.17
申请人
NEC CORP., TOKIO/TOKYO, JP
发明人
KOBAYASHI, HIDEHARU, MINATO-KU, TOKYO, JP;OKUDA, JIRO, MINATO-KU, TOKYO, JP
分类号
H04M15/00;G07F7/08;H04M17/00;H04M17/02;(IPC1-7):H04M15/00;H04M15/28
主分类号
H04M15/00
代理机构
代理人
主权项
地址
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