Abstract: A lottery ticket includes an upper edge, a lower edge, opposite side edges, and a first area located adjacent the upper edge, the first area having a first set of gaming indicia disposed thereon that form lower portions of prize symbols. A second area is located adjacent the lower edge, the second area having a second set of gaming indicia disposed thereon that form upper portions of prize symbols. The arrangement is such that upon folding the ticket about a horizontal axis and aligning the second set of gaming indicia above the first set of gaming indicia, the winning status of the lottery ticket is determined if the upper portions of prize symbols register with the lower portions of prize symbols to create at least one complete prize symbol. Other lottery ticket constructions are further contemplated. A method of playing a lottery game is further disclosed.

Abstract: A calculator for doing multiplication having an integral ball point pen. The calculator includes a ball point pen, an inner cylinder fixedly connected to the ball point pen, and an outer cylinder angularly displaceable relative to the inner cylinder. The inner cylinder has an outer surface which has a peripheral row of multiplier numbers and a plurality of axial rows of product numbers. The outer cylinder has a window for viewing and choosing a multiplier number and an axial slot for viewing the corresponding row of product numbers. The outer cylinder has an axial column of numbers to be multiplied which are disposed alongside the slot.

Abstract: A Biorythms analog computer-calendar is provided to display without computations the level of the physical, the emotional, and the intellectual biorythms of a human body. The level of the three biorythms appears on display in analog and digital forms for any dialed calendar date, if the computer-calendar is set initially with the individual's birth date. The analog elements used to register the three biorythm levels are drums attached to gears with a number of teeth equal or proportional to 23, 28 and 33, or to the period of the three biorythms respectively. A calendar arrangement is introduced to create a correlation between the displayed biorythm levels and the calendar date associated with them.

Abstract: An apparatus used to correlate and selectively read information from tables dealing with the extent of nitrogen absorption in a scuba diver's body. Tables containing information relating to the amount of time a diver spends at various depths, decompression procedures, the surface interval between repetitive dives, and the resultant amount of nitrogen accumulation in the diver's body are attached to an inner tube. Two side-by-side outer tubes, each having sight windows for selective reading of the tables, are arranged concentrically about the inner tube, and are secured in lateral position by end caps attached to the inner tube. Each outer tube is provided with inwardly projecting flanges on each end which serve as bearing surfaces for rotation about the inner tube. The apparatus is preferably slipped over a scuba tank air hose for carrying.

Abstract: A simple device intended to register the number of cycles performed by a patient using a lung exerciser. A means for easily resetting to zero is provided. The device is adaptive to various sizes, scales, and maximum number of cycles.