| 发明名称 |
Pad for woodwind musical instrument |
| 摘要 |
A pad for closing the tone hole of a woodwind instrument is formed of a disc of silicone rubber having a compression set at room temperature after 22 hours no greater than about 5%.
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| 申请公布号 |
US4114500(A) |
申请公布日期 |
1978.09.19 |
| 申请号 |
US19760688503 |
申请日期 |
1976.05.20 |
| 申请人 |
THE UNIVERSITY OF IOWA RESEARCH FOUNDATION |
发明人 |
NORBECK, EDWIN |
| 分类号 |
G10D9/04;(IPC1-7):G10D9/04 |
主分类号 |
G10D9/04 |
| 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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