The ornamental design for an endoscope, as shown and described.
FIG. 1 is a perspective view of an endoscope showing our new design;
FIG. 2 is a front view thereof, the rear view being mirror image;
FIG. 3 is a plan view thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a left side view thereof;
FIG. 7 is an enlarged left side view thereof; and,
FIG. 8 is an enlarged partial view taken along arrows 8-8 section of FIG. 2.
The evenly spaced broken lines are directed to environment and form no part of the claimed design. The dot-dash broken lines depict the bounds of the claimed design and form no part of the claimed design. In addition, the dot-dashed broken lines and arrows in FIG. 2 view are used to identify the enlarged FIG. 8 view, are for reference purposes only, and form no part of the claimed design.
The contrast in shading types between straight occasionally broken line shading and stipple shading represents a contrast in appearance as shown.