发明名称 Proximity measuring device for golfers
摘要 A proximity comparing device for golfers for determining relative distances of golf balls from a flagstick which includes a clamping ring to releasably engage the flagstick while permitting sliding movement of the clamping ring about the periphery of the flagstick in combination with a string which has one end anchored to the clamping ring and another end received in a reel. The reel is preferably formed with an inner opening which is just slightly larger than the diameter of a ball so that adjustable amounts of string are played out or received in the reel making it a relatively simple matter to determine promptly which of two golf balls is farthest from the flagstick.
申请公布号 US4532712(A) 申请公布日期 1985.08.06
申请号 US19830528645 申请日期 1983.09.01
申请人 VISTAIN, JAMES E. 发明人 VISTAIN, JAMES E.
分类号 A63B57/00;A63B67/06;G01B3/02;G01B3/10;G01B3/11;(IPC1-7):G01B3/10 主分类号 A63B57/00
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