Hands-free telephone.

申请公布号：EP0330384(B1)

申请号：EP19890301554

申请日期：1989.02.17

申请公布日期：1993.11.03

申请人：

NEC CORPORATION

发明人：YOSHIDA, IKIO

分类号：H04M1/60;H04M9/08;H04M9/10;H04Q7/20;H04Q7/38;(IPC1-7):H04M9/10;H04M1/72

主分类号：H04M1/60

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