发明名称 GOLF GLUBS AND METHODS
摘要 <p>A first golf club (10) comprises a head (12) for striking a golf ball, a handle (18) for swinging the golf club (10) and a shaft (22) connecting the head (12) with the handle (18). A rib (24) protrudes outwardly from the shaft (22) and runs longitudinally along the shaft (22) in a spiral configuration. The spiral configuration has a pitch which decreases from the head (12) to the handle (18). A second golf club (50) has a series of X-like elements (58a) running linearly and longitudinally along the face of the shaft (22). The head (12) includes a body with a face (14) angled inwardly, a rear end (38) angled inwardly, right and left sides, a substantially flat bottom (46), and a top (48).</p>
申请公布号 WO1994021333(A1) 申请公布日期 1994.09.29
申请号 US1994002908 申请日期 1994.03.17
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