| 发明名称 |
METHOD AND APPARATUS FOR INSTRUCTION OF STRINGED INSTRUMENT BOW STICK ANGULATION |
| 摘要 |
An attitude sensor is secured to the bow of a stringed instrument and an indicator responsive to the sensor provides indication to a student of each of his departures from proper bow stick angulation during play.
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| 申请公布号 |
US3726177(A) |
申请公布日期 |
1973.04.10 |
| 申请号 |
USD3726177 |
申请日期 |
1971.11.23 |
| 申请人 |
KAPLAN B,US |
发明人 |
KAPLAN B,US |
| 分类号 |
G09B15/06;(IPC1-7):G09B15/00 |
主分类号 |
G09B15/06 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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