COIN Russian patent published in 2002 - IPC

FIELD: money circulation. SUBSTANCE: round coin with cylindrical milled edge including individual members. Coin center of gravity is offset relative to center of coin circle. Scale including central and additional lines is applied to outer edge of face and/or reverse side. Central line coincides with intersection point of coin circle line and coin radius line running through center of gravity. Additional lines are arranged symmetrically and at both sides of central line. EFFECT: increased emission profit to state by imparting novel consumer properties characteristic of miniature tool for controlling and measuring surface inclination angle. 4 dwg