发明名称 |
Racket |
摘要 |
In a frame of a fiber reinforced plastic tennis racket made by molding process, thickness of the racket frame is reduced in an area starting from the throat to grip portion, and more preferably in the throat portion, to mitigate the bending stiffness of the frame at the portion thereby effectively hindering direct transmission of impact on the playing face to players' hands.
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申请公布号 |
US4145047(A) |
申请公布日期 |
1979.03.20 |
申请号 |
US19770799183 |
申请日期 |
1977.05.23 |
申请人 |
NIPPON GAKKI SEIZO KABUSHIKI KAISHA |
发明人 |
NAGAMOTO, ITSUSHI;KUWABARA, MASAHARU;MUROI, KUNIMASA |
分类号 |
A63B49/10;A63B59/00;B32B5/00;B32B5/28;B32B17/02;(IPC1-7):A63B49/10 |
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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