US D274839 S
FIG. 1 is a perspective view of a hearing aid coupler showing my new design;
FIG. 2 is a left side elevational view thereof, the other side being a mirror image thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a front elevational view thereof; and
FIG. 6 is a rear elevational view thereof.