| 发明名称 |
RACKET FRAME |
| 摘要 |
<p>PURPOSE:A racket frame in which the thickness of an upper neck part is partly reduced and the bending rigidity in the direction of thickness of the neck part is reduced to be smaller than those of frame part and shaft part, so that the position of a point at which a ball is hit can be felt clearly.</p> |
| 申请公布号 |
JPS52146329(A) |
申请公布日期 |
1977.12.06 |
| 申请号 |
JP19760061632 |
申请日期 |
1976.05.27 |
| 申请人 |
NIPPON MUSICAL INSTRUMENTS MFG |
发明人 |
NAGAMOTO ITSUSHI;KUWABARA MASAHARU;MUROI KUNIMASA |
| 分类号 |
A63B49/10;A63B59/00;B32B5/00;B32B5/28;B32B17/02 |
主分类号 |
A63B49/10 |
| 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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