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发明名称
Transmitter-receiver having ear-piece type acoustic transducing part
摘要
申请公布号
EP0683621(B1)
申请公布日期
2002.03.27
申请号
EP19950107430
申请日期
1995.05.16
申请人
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人
AOKI, SHIGEAKI;MITSUHASHI, KAZUMASA;NISHINO, YUTAKA;MATSUMOTO, KOHICHI;YUSE, CHIKARA;MATSUI, HIROYUKI
分类号
H04R1/46;H04R3/00;(IPC1-7):H04R1/46
主分类号
H04R1/46
代理机构
代理人
主权项
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