发明名称 Speedometer and/or hodometer for skiers
摘要 Device for measuring the speed and/or the distance for skiers, consisting of a toothed wheel positioned at the ski and rotatable around an axis always vertical to the ski axis, the toothing of the wheel being in mechanical contact with the snow, whereby the wheel is protected at the side and in front and the space in which the wheel is positioned is open towards the back.
申请公布号 US4262537(A) 申请公布日期 1981.04.21
申请号 US19790022439 申请日期 1979.03.21
申请人 JANDER, DIETER E.;FRANKE, ARNE W. P. 发明人 JANDER, DIETER E.;FRANKE, ARNE W. P.
分类号 A63C5/06;A63C11/00;G01C22/00;G01P1/04;G01P3/00;G01P3/24;(IPC1-7):G01P3/49 主分类号 A63C5/06
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