发明名称 Apparatus for random number selection
摘要 Apparatus for dual random number selection is provided to pick numbers in a lottery or the like. Said invention consists of a base having a mixing reservoir, a well and a conduit between the mixing reservoir and the well, a plurality of filler and winning balls contained in the mixing reservoir, a wheel with a plurality of receptacles on its circumference each randomly numbered contained in the wall, a transparent cover over the base with the wheel's shaft through it connected to a knob to allow the wheel to rotate with each receptacle able to pick up one ball at random when placed in a vertical position.
申请公布号 US4373728(A) 申请公布日期 1983.02.15
申请号 US19810312644 申请日期 1981.10.19
申请人 KORZENIETZ, WILLI 发明人 KORZENIETZ, WILLI
分类号 G07C15/00;(IPC1-7):A63F5/02 主分类号 G07C15/00
代理机构 代理人
主权项
地址