The ornamental design for an endoscope, as shown and described.
FIG. 1 is a perspective view of an endoscope according to the present invention.
FIG. 2 is a front view of the endoscope of FIG. 1.
FIG. 3 is a right side view of the endoscope of FIG. 1.
FIG. 4 is a left side view of the endoscope of FIG. 1.
FIG. 5 is a top view of the endoscope of FIG. 1.
FIG. 6 is a bottom view of the endoscope of FIG. 1; and,
FIG. 7 is a rear view of the endoscope of FIG. 1.
The dashed lines shown in FIG. 1 and FIGS. 3-6 immediately adjacent to the claimed portion of the tube of the endoscope represent boundaries of the design and form no part the claimed design.
The dashed lines shown in FIGS. 2 and 7 show portions of the endoscope that form no part of the claimed design.