发明名称 Golf clubhead
摘要 Golf clubhead (1) made from metal, having a strike face (2) which has a loft angle alpha of greater than 45°°, said strike (2) face having has a plurality of parallel grooves (10), characterized in that the strike face (2) has a surface roughness Ra of less than 0.25 micrometre, and in that the Vickers hardness of the strike face (2) is greater than 5 GigaPascal.
申请公布号 HK1067082(A1) 申请公布日期 2006.10.27
申请号 HK20040110019 申请日期 2004.12.16
申请人 ROGER CLEVELAND GOLF COMPANY, INC. 发明人 ROESGEN, RICHARD, J.;BENNETT, DAVID, M.
分类号 A63B;A63B53/04 主分类号 A63B
代理机构 代理人
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