The ornamental design for a massagedevice, as shown and described.
The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with color drawing(s) will be provided by the Office upon request and payment of the necessary fee.
1. Massage device
1.1: Front
1.2: Back
1.3: Left
1.4: Right
1.5: Top
1.6: Bottom
1.7: Perspective
1.8: Perspective
1.1-1.8are drawings showing a first embodiment of the massage device; the present product is used for head massage.