发明名称 Golf tee with line-of-flight indicator
摘要 An improved golf tee device incorporating a body member constructed of metallic wire surrounded by a protective elastomeric coating and generally describing a uniformly spaced concentric spiral. A golf ball supporting portion extends from one end of the body member and an insertion portion extends from the other end. The body member cooperates with a separate and attached line-of-flight indicating member incorporating a generally triangular planar surface with a bore therethrough adjacent the midpoint of a base of said triangle. The spiral body member passes through the bore and slidably engages the indicating member such that axial rotation of the body member results in translation of the indicating member along the axis of said body member.
申请公布号 US4181311(A) 申请公布日期 1980.01.01
申请号 US19780918796 申请日期 1978.06.26
申请人 LAWLOR, ROBERT E 发明人 LAWLOR, ROBERT E
分类号 A63B57/00;A63B69/36;(IPC1-7):A63B57/00 主分类号 A63B57/00
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