Invention Grant
US07727096B2 Composite hockey stick system 失效
复合曲棍球棒系统

Composite hockey stick system
Abstract:
A handle end is adapted to be held by a player and a striking end is adapted to contact and propel an object. The stick includes a shaft coupling the handle end and the striking end. The shaft is fabricated of a relatively rigid material with limited flexibility. The shaft has a hole extending there through with a cylindrical wall defining the hole for varying the playing characteristics of the system.
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