The ornamental design for an adjustment handle for an articulated equipment support arm, as shown and described.
FIG. 1 is a front perspective view of an adjustment handle for an articulated equipment support arm.
FIG. 2 is a front perspective view of an adjustment handle for an articulated equipment support arm attached to the articulated equipment support arm.
FIG. 3 is a left side elevational view of the adjustment handle for the articulated equipment support arm shown in FIG. 1.
FIG. 4 is a top plan view thereof.
FIG. 5 is a bottom plan view thereof.
FIG. 6 is a front elevational view thereof; and,
FIG. 7 is a rear elevational view thereof.
The broken line showing of an articulated equipment support arm in FIG. 2 depicts environment; the remaining broken lines depict portions of the adjustment handle for an articulated equipment support arm. The broken lines form no part of the claimed design.