Strap case for electronic device

FIG. 1 is a perspective view of a strap case for an electronic device, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is another front view thereof, showing a strap rotated on a hinge;

FIG. 9 is another right-side view thereof, showing a strap rotated on a hinge; and,

FIG. 10 is another perspective view thereof, showing a hand in broken lines illustrating an example environment.

The broken line showing of the hand in FIG. 10 illustrates the environment of the claimed design and forms no part thereof. The shade lines in the figures illustrate contour and not surface ornamentation.