Sharpening machine

Description

1.1—front view of a sharpening machine showing my new design;

1.2—back view thereof;

1.3—left view thereof;

1.4—right view thereof;

1.5—top view thereof;

1.6—bottom view thereof; and

1.7—left front perspective view thereof.

The broken lines shown in the figures depict portions of the sharpening machine that form no part of the claimed design.

Claims

The ornamental design for a sharpening machine, as shown and described.