| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To eliminate psychologically anxiety caused by a desperate feeling of shooting to lift a ball by enabling powerless golfers to increase yardage. <P>SOLUTION: The golf club with a length of 37 inch or less is constituted to meet a relationship of face progression>(radius of hosel)+(height of face center)×tan(loft angle). <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
