Support arm

FIG. 1 is a front perspective view of a support arm, in a lower position, in a first environment.

FIG. 2 is a rear perspective view thereof.

FIG. 3 is a top view thereof.

FIG. 4 is a right side view thereof.

FIG. 5 is a front view thereof.

FIG. 6 is a left side view thereof.

FIG. 7 is a bottom view thereof.

FIG. 8 is a front perspective view of a support arm, in an upper position, in a first environment.

FIG. 9 is a rear perspective view thereof.

FIG. 10 is a top view thereof.

FIG. 11 is a right side view thereof.

FIG. 12 is a front view thereof.

FIG. 13 is a left side thereof.

FIG. 14 is a bottom thereof.

FIG. 15 is a front perspective view of a support arm, in a horizontal position, in a first environment.

FIG. 16 is a rear perspective view thereof.

FIG. 17 is a top view thereof.

FIG. 18 is a right side view thereof.

FIG. 19 is a front view thereof.

FIG. 20 is a left side view thereof.

FIG. 21 is a bottom view thereof.

FIG. 22 is a front perspective view of a support arm, in a lower position, in a second environment.

FIG. 23 is a rear perspective view thereof.

FIG. 24 is a top view thereof.

FIG. 25 is a right side view thereof.

FIG. 26 is a front view thereof.

FIG. 27 is a left side view thereof.

FIG. 28 is a bottom view thereof.

FIG. 29 is a front perspective view of a support arm, in a horizontal position, in a second environment.

FIG. 30 is a rear perspective view thereof.

FIG. 31 is a top view thereof.

FIG. 32 is a right side view thereof.

FIG. 33 is a front view thereof.

FIG. 34 is a left side view thereof.

FIG. 35 is a bottom view thereof.

FIG. 36 is a front perspective view of a support arm, in an upper position, in a second environment.

FIG. 37 is a rear perspective view thereof.

FIG. 38 is a top view thereof.

FIG. 39 is a right side view thereof.

FIG. 40 is a front view thereof.

FIG. 41 is a left side view thereof; and,

FIG. 42 is a bottom view thereof.

The broken lines are directed to the environment and form no part of the claimed design.

The wire frame lines shown throughout the views are intended to indicate surface contour.