Drug delivery device

FIG. 1 is a bottom, rear perspective view of a drug delivery device, showing the new design;

FIG. 2 is a top, front perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right-side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines of uneven length shown in the drawings illustrate portions of the drug delivery device that form no part of the claimed design. Contrast in materials is shown by line shading in some areas and stipple shading in other areas.