Frequency converter

Description

FIG. 1 is a top, front and left perspective view for a frequency converter comprising a new, original and ornamental 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 view thereof;

FIG. 7 is a right view thereof;

FIG. 8 is a top, front and left perspective view for a frequency converter comprising a new, original and ornamental design according to another embodiment;

FIG. 9 is a front view thereof;

FIG. 10 is a rear view thereof;

FIG. 11 is a top view thereof;

FIG. 12 is a bottom view thereof;

FIG. 13 is a left view thereof; and,

FIG. 14 is a right view thereof.

The broken lines shown represent the portions of the frequency converter that form no part of the claimed design.

Claims

The ornamental design for a frequency converter substantially as shown and described.