Operation board for numerical controller

FIG. 1 is a front, top and right side perspective view of an operation board for numerical controller, showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a right side view thereof; and,

FIG. 7 is a left side view thereof.

The parts shown in the broken lines are for the purpose of illustrating portions of the article and do not form part of the claimed designs. Dotted and dashed lines represent boundaries of the claimed design and form no part thereof.