The ornamental design for a frame, as shown and described.
FIG. 1 is a perspective view of a frame of the present invention;
FIG. 2 is a front elevational view of the frame;
FIG. 3 is a bottom plan view of the frame;
FIG. 4 is a back elevational view of the frame;
FIG. 5 is a top plan view of the frame;
FIG. 6 is a left side elevational view of the frame; and,
FIG. 7 is a right side elevational view of the frame.
The broken line showing of a photograph within each frame element in FIG. 1 is for illustrative purposes only and forms no part of the claimed invention. Similarly, the broken line showing of a surface supporting the present invention frame in FIG. 1 forms no part of the claimed invention. Additionally, the broken line showing of an adjustable leg in FIGS. 1 and 3–7 forms no part of the claimed invention.