| 发明名称 |
KEY MECHANISM OF GRAND PIANO |
| 摘要 |
FIELD: musical instruments. SUBSTANCE: key mechanism of grand piano to enhance execution potential includes figure that carries stepped protrusion which interacts with pendulum. EFFECT: enhanced execution potential. 2 cl, 4 dwg
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| 申请公布号 |
RU2197753(C2) |
申请公布日期 |
2003.01.27 |
| 申请号 |
RU19980104180 |
申请日期 |
1998.02.19 |
| 申请人 |
GOKHSHTEJN ALEKSANDR JAKOVLEVICH |
发明人 |
GOKHSHTEJN A.JA. |
| 分类号 |
G10C3/22;(IPC1-7):G10C3/22 |
主分类号 |
G10C3/22 |
| 代理机构 |
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代理人 |
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