US D500142 S1
FIG. 1 is an end elevational view of an assay device showing our new design;
FIG. 2 is an end elevational view of thereof, taken form the opposite side;
FIG. 3 is a side elevation view thereof, the opposite side elevational view being a mirror image thereto;
FIG. 4 is a top plan view thereof, shown in open condition;
FIG. 5 is a top plan view thereof, shown in closed condition; and,
FIG. 6 is a perspective view thereof.