The ornamental design for an endoscopeoperatingunit, as shown and described.
FIG. 1 is a front, top and left side perspective view of an endoscope operating unit, showing my 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;
FIG. 7 is a right side view thereof; and,
FIG. 8 is an enlarged fragmented view thereof, taken along line 8 in FIG. 1.
The broken lines showing the remainder thereof are for environmental purposes only and form no part of the claimed design. The dot-dash broken lines denote the boundary between the claimed part and the unclaimed part. The two-dot-dashed lines showing in FIG. 1 are included to indicate the cutting plan of FIG. 8.