US D326156 S
FIG. 1 is a perspective view of a knee joint for prosthetic system, showing my new design;
FIG. 2 is a right side elevational view thereof, the left side elevational view being identical thereto;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.