The ornamental design for an electronicdeviceholder, as shown and described.
FIG. 1 is a front perspective view of an electronic device holder showing our new 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 side view thereof;
FIG. 7 is another side view thereof;
FIG. 8 is another front view thereof showing the electronic device holder in an environment in which it may be used, with an electronic device (shown in phantom) being inserted into the electronic device holder;
FIG. 9 is another front view thereof with the electronic device inserted therein; and,
FIG. 10 is another front view of the electronic device holder of the present invention in an environment in which it may be used, showing the holder disposed on the arm (in phantom) of a user.
The broken lines in the Figures show portions of the electronic device holder which form no part of the claimed design.
Arm leg or neck watertight container, for housing valuables and small articles, safely fastenable to human members or to the neck of dogs and other domestic animals