US D318742 S
FIG. 1 is a top, front perspective view of a supporting channel for ceiling mounted track lighting system showing my new design;
FIG. 2 is a cross-sectional view thereof as taken along line 2--2 of FIG. 1;
FIG. 3 is a cross-sectional view of a second embodiment of my new design;
FIG. 4 is a cross-sectional view of a third embodiment of my new design.
It is understood that all undisclosed exterior surfaces of all embodiments are plain and unornamented.