Digital abacus

Abstract

Description

FIG. 1 is a top, front perspective view of a digital abacus showing our new design;

FIG. 2 is a top plan view of the digital abacus shown in FIG. 1, the bottom view being substantially identical thereto;

FIG. 3 is a side view of the digital abacus shown in FIG. 1, the opposite side being substantially identical thereto; and,

FIG. 4 is an end view of the digital abacus shown in FIG. 1, drawn on an enlarged scale, the opposite side being substantially identical thereto.

Claims

The ornamental design for a digital abacus, as shown and described.