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    • 7. 发明授权
    • Electronic abacus
    • US11500409B2
    • 2022-11-15
    • US16633169
    • 2018-11-02
    • Bum Suk Son
    • Bum Suk Son
    • G06C1/00G09B19/02
    • The present invention relates to an electronic abacus including: a plurality of abacus beads fitted on each of unit-specific support rods mounted on an abacus frame to be slidable in a vertical direction; an abacus bead position detecting unit including a plurality of position detecting means for detecting a position change of each abacus bead from lower parts of the abacus beads fitted on each of the unit-specific support rods; an abacus bead guide panel in which unit-specific guide blocks for guiding movement of the abacus beads fitted on each of the unit-specific support rods are integrally connected to cover all of the abacus bead position detecting unit; and a plurality of abacus bead moving members provided in a number which is the same as that of the abacus beads in the guide panel to movably support the abacus beads fitted on each of the support rods.