GOLF CLUB STEEL SHAFT
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United States of America Patent
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app pub date -
May 30, 2013
filing date -
May 31, 2012
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Abstract
A golf club steel shaft in which, when a distance from a front end of the shaft to a center of gravity point of the shaft is LG and when a full length of the shaft is LS, a center-of-gravity rate Y (%) obtained as LG/LS satisfies 51.0≦Y≦60.0, a shaft weight X (g) satisfies 80≦X≦140, and a full length of the shaft LS (inch) satisfies 30≦LS≦42.
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