The ornamental design for a warmingtherapydevice, as shown and described.
FIG. 1 shows a first perspective view of the invention;
FIG. 2 shows a second perspective view of the invention;
FIG. 3 shows a front view of the invention;
FIG. 4 shows a left side view of the invention;
FIG. 5 shows a rear view of the invention;
FIG. 6 shows a right side view of the invention;
FIG. 7 shows a top view of the invention; and,
FIG. 8 shows a bottom view of the invention.
The broken lines in the FIGS. 1–8 are included for the purpose of illustrating portions of the warming therapy device that form no part of the claimed design.