The ornamental design for a combined spout and pop-up drain knob, as shown and described.
FIG. 1 is a left side elevational view of a combined spout and pop-up drain
knob showing my new design, the right side being a mirror image of the
left side shown;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof; and
FIG. 5 is a perspective view taken from the top, front and left side
thereof.