Takahashi Takuji: Golf club with head whose center of gravity position is variable. Takahashi Takuji, April 20, 2006: JP2006-101918 (4 worldwide citation)

PROBLEM TO BE SOLVED: To adjust the position of the center of gravity of a golf club head so that a golf ball can fly straight and the maximum carry can be obtained when a golf player swings the golf club in such a way as the golf player can easily hit the golf ball.SOLUTION: The golf club is of suc ...

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