Foldable Chair Frame

FIG. 1 is a top front perspective view of the foldable chair frame showing the new design; FIG. 2 is a top rear perspective view thereof; FIG. 3 is a front elevational view thereof; FIG. 4 is a rear elevational view thereof; FIG. 5 is a left side elevational view thereof; FIG. 6 is a right side elevational view thereof; FIG. 7 is a top plan view thereof; FIG. 8 is a bottom plan view thereof; and, FIG. 9 is another top front perspective view of the foldable chair frame showing the foldable chair frame in a folded state. The broken lines depict portions of the foldable chair frame that form no part of the claimed design.