US D459119 S1
FIG. 1 is a perspective view of a siderail support arm;
FIG. 2 is a side elevation view of thereof;
FIG. 3 is another side elevation view thereof;
FIG. 4 is a side elevation view thereof;
FIG. 5 is another side elevation view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The broken lines are for environmental purposes only and form no part of the claimed design.