Power supply attachment surface node

FIG. 1 is a perspective view of a power supply attachment surface node showing our new design in a position of use on the rear of a helmet;

FIG. 2 is an enlarged view of a portion of FIG. 1 ; and,

FIG. 3 is a front elevational view of the power supply attachment surface node, shown on the rear of a helmet.

The dash-dot-dash broken lines in FIG. 1 illustrate the perimeter of a portion of the power supply attachment surface node that is shown enlarged. The dash-dot-dash broken lines form no part of the claimed design. The broken lines on the power supply attachment surface node depict portions of the power supply attachment surface node that form no part of the claimed design. The other broken lines illustrate environmental subject matter that forms no part of the claimed design.