Operation panel of machine tools

Description

FIG. 1 is a perspective view;

FIG. 2 is a front view;

FIG. 3 is a rear view;

FIG. 4 is a left side view;

FIG. 5 is a right side view;

FIG. 6 is a top view; and,

FIG. 7 is a bottom view.

In the drawings, the broken lines depict a portion of the operation panel of machine tools which form no part of the claimed design.

Claims

The ornamental design for an operation panel of machine tools, as shown and described.