The ornamental design for a combinedkeyboardbrush handle and base, as shown and described.
FIG. 1 is an exploded front perspective view of a combined keyboard brush handle and base showing my new design.
FIG. 2 is an assembled front perspective view thereof.
FIG. 3 is a front elevational view of the design as shown in FIG. 2.
FIG. 4 is a rear elevational view of the design as shown in FIG. 2.
FIG. 5 is a right side elevational view of the design as shown in FIG. 2.
FIG. 6 is a left side elevational view of the design as shown in FIG. 2.
FIG. 7 is a top plan view of the design as shown in FIG. 2; and,
FIG. 8 is a bottom plan view of the design as shown in FIG. 2.
The broken lines shown in the figures are included for the purpose of illustrating environmental structure of the combined keyboard brush handle and base and form no part of the claimed design.