| 发明名称 |
Electronic metronome |
| 摘要 |
An electronic metronome has a visual indicator consisting of a package in which a plurality of different light color LED chips are mounted close to each other. Down-beat and up-beat are indicated as different color emissions from a single spot.
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| 申请公布号 |
US4090355(A) |
申请公布日期 |
1978.05.23 |
| 申请号 |
US19760724315 |
申请日期 |
1976.09.17 |
| 申请人 |
KABUSHIKI KAISHA DAINI SEIKOSHA |
发明人 |
MOROHOSHI, FUMIO |
| 分类号 |
G09B15/00;G01D7/00;G04F5/02;G10G1/00;(IPC1-7):G04F5/02 |
主分类号 |
G09B15/00 |
| 代理机构 |
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代理人 |
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| 地址 |
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