| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a means to permit a user to easily and accurately grasp the sloping condition of a green. <P>SOLUTION: An air bubble type level 3 is attached to the head 1 of a golf putter C1 so as to ensure that the level displays a levelness reference with the bottom surface 1b of the club head staying in a level condition. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
