| 发明名称 |
SOUND PRODUCING WRISTWATCH |
| 摘要 |
PURPOSE:To reduce the loss of sound volume and achieve the reduction in thickness of a watch by providing sound radiating parts on the front circumferential edge or side face part of a case. |
| 申请公布号 |
JPS536071(A) |
申请公布日期 |
1978.01.20 |
| 申请号 |
JP19760079868 |
申请日期 |
1976.07.07 |
| 申请人 |
CITIZEN WATCH CO LTD |
发明人 |
KATOU YOSHIAKI |
| 分类号 |
H04R17/00;G04B37/08;G04C21/02 |
主分类号 |
H04R17/00 |
| 代理机构 |
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代理人 |
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| 地址 |
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