| 发明名称 |
TWO-WAY COMMUNICATIONS EARSET |
| 摘要 |
A one piece two way voice communications earset which is situated in or at the ear of the user and which includes either two unidirectional microphones having their outputs combined or a single bi-directional microphone.
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| 申请公布号 |
CA2094794(A1) |
申请公布日期 |
1994.01.17 |
| 申请号 |
CA19932094794 |
申请日期 |
1993.04.23 |
| 申请人 |
YAMAGUCHI, NOBORU;KONOMI, MASAO |
发明人 |
YAMAGUCHI, NOBORU;KONOMI, MASAO |
| 分类号 |
H04J3/00;H04R1/28;(IPC1-7):H04R1/28 |
主分类号 |
H04J3/00 |
| 代理机构 |
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代理人 |
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