US D381113 S
FIG. 1 is a front elevational view of a tube clamp for exhibit lamps showing my new design;
FIG. 2 is an enlarged front elevational view thereof;
FIG. 3 is a right side elevational view thereof, the left side is a mirror image thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof; and,
FIG. 6 is a rear elevational view thereof.
The broken line showing of the exhibit lamp and its tubular supporting arm and support pipe in FIG. 1 and a portion of the tubular supporting arm and support pipe in FIGS. 2 and 3 are for illustrative purposes only and form no part of the claimed design.