US D376458 S
FIG. 1 is a top, front, right side perspective view of a structural pipe showing our new design;
FIG. 2 is a front elevational view;
FIG. 3 is a right side elevational view;
FIG. 4 is a top plan view;
FIG. 5 is a cross sectional view taken on line V--V of FIG. 2; and,
FIG. 6 is a reduced perspective view, the broken line showing of pipes, wires, plates and wheels, the full line showing of the structural pipes and additional structural pipes being for illustrative purposes only.