Invention Grant
US08371968B2 Sports racquet structure 失效
运动球拍结构

Sports racquet structure
Abstract:
A sports racquet comprising a handle portion, a paddle portion, which is provided with at least a solid ball striking surface, and a neck portion, which rigidly connects said handle portion and said paddle portion. The paddle portion comprises at least a first cavity having a first longitudinal axis, which is substantially unperpendicular to said main reference plane.
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