The ornamental design for an attentionmaintenanceappliance, as shown and described.
FIG. 1 is a perspective view of a first embodiment of an attention maintenance appliance, showing my new design.
FIG. 2 is an end view of the embodiment shown in FIG. 1. The opposite end view is a mirror image thereof.
FIG. 3 is a front view of the embodiment shown in FIG. 1. The rear view is a mirror image thereof.
FIG. 4 is a top view of the embodiment shown in FIG. 1. The bottom view is a mirror image thereof.
FIG. 5 is a perspective view of a second embodiment of an attention maintenance appliance.
FIG. 6 is an end view of the embodiment shown in FIG. 5. The opposite end view is a mirror image thereof.
FIG. 7 is a front view of the embodiment shown in FIG. 5. The rear view is a mirror image thereof.
FIG. 8 is a top view of the embodiment shown in FIG. 5. The bottom view is a mirror image thereof; and,
FIG. 9 is a perspective view of the embodiment shown in FIG. 5. The broken line showing of a hand is for environmental purposes only and forms no part of the claimed design.