The ornamental design for a combined keyholder and self-defense device, as shown and described.
FIG. 1 is a right side elevational view of a combined key holder and
self-defense device showing my new design, the environmental structure
shown in dotted lines being for illustrative purposes only,
FIG. 2 is a top plan view of the combined key holder and self-defense
device, the bottom plan view being a mirror-image thereof,
FIG. 3 is a front elevational view thereof, and
FIG. 4 is a rear elevational view of the combined key holder and
self-defense device.