Beam

FIG. 1 is a top right perspective view of a beam;

FIG. 2 is a top left perspective view thereof;

FIG. 3 is a bottom left perspective view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right elevation view thereof;

FIG. 7 is a left elevation view thereof;

FIG. 8 is a front elevation view thereof; and,

FIG. 9 is a rear elevation view thereof.

Shade lines shown in the accompanying drawings of FIGS. 1 - 9 represent surface contour only and not texture, color shading, or surface ornamentation. Broken lines shown in FIGS. 1 - 9 illustrates portions of the beam that form no part of the claimed design. In addition, the beam is shown with a symbolic break in its length. The appearance of any portion of the article between the break lines forms no part of the claimed design.