The ornamental design for a controldevice for electric apparatus, as shown and described.
FIG. 1 is a perspective view of a control device for electric apparatus
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 left side view thereof; and, FIG. 7 is a right side
view thereof.