发明名称 |
Racket |
摘要 |
A racket comprising a frame body having a face portion, a shaft portion, and a grip portion, and a groove in the length of 10% to 20% against the entire circumference of the frame comprising the face portion provided at two portions covering maximum width points of the frame comprising the face portion and a closed tube enclosing a slidable weight weighing 2 g to 10 g is embedded in the groove.
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申请公布号 |
US2002160866(A1) |
申请公布日期 |
2002.10.31 |
申请号 |
US20020076442 |
申请日期 |
2002.02.19 |
申请人 |
BRIDGESTONE SPORTS CO., LTD. |
发明人 |
MATSUOKA TOYOTAKE;SHIRAI SATOSHI |
分类号 |
A63B49/00;A63B49/04;A63B49/06;A63B49/10;A63B59/00;(IPC1-7):A63B49/04 |
主分类号 |
A63B49/00 |
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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