发明名称 GOLF CLUB HEAD
摘要 <p>PROBLEM TO BE SOLVED: To provide a golf club head which is made of metal and is designed to make the ball hitting feel thereof soft and to substantially prevent the cracking by impact in hitting a ball. SOLUTION: This golf club head has a metallic face 12 and is constituted by forming score lines 12a on the ball hitting surface side of this face, forming plural hollow grooves 12b on the rear surface of the face and forming the hollow grooves 12b in a direction intersecting with the score line 12a.</p>
申请公布号 JP2001170227(A) 申请公布日期 2001.06.26
申请号 JP19990357420 申请日期 1999.12.16
申请人 DAIWA SEIKO INC 发明人 IMAI SUKETO
分类号 A63B53/04;(IPC1-7):A63B53/04 主分类号 A63B53/04
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