The ornamental design for support frame of a tablelamp, as shown and described.
FIG. 1. is a top, front right side perspective view thereof; FIG. 2. is a
front elevational view thereof; FIG. 3. is a rear elevational view
thereof; FIG. 4. is a left elevational view thereof; FIG. 5. is a right
elevational view thereof; FIG. 6. is a top plan view thereof; and, FIG. 7.
is a bottom plan view thereof.