Patent ID: 6460762
Filing Date: 2002-10-08
Classification: G06C,Y10T

Abstract:
A wheel chart comprising:a first rigid disk-shaped member having a hub portion and an obverse surface provided with legible matter extending around at least part of said hub portion; a second rigid disk-shaped member having a hub portion surrounding a hole aligned with the hub portion of said first rigid disk-shaped member, said second rigid disk-shaped member being transparent over at least part of an area positionable over said through said second rigid disk-shaped member, said second rigid disk-shaped member having legible matter correlating with the legible matter of said first rigid disk-shaped member to provide information as to the correlation to a wheel-chart user; and an element rotatably connecting said hub portions for relative rotation of said members and selection of said information by said relative rotation, said members being seperable from one another, at least one of said members being a circular disk formed with a metallization carrying machine reproducible information.