The ornamental design for a personal weighing scale, as shown and described herein.
FIG. 1 is a pictorial view taken from the top, front and right side of the personal weighing scale embodying my design, the pictorial view taken from the top, front and left side being a mirror image of FIG. 1;
FIG. 2 is a right side view thereof, the left side view being a mirror image of the right side view, and wherein the generally semi-circular-shaped base of the display device adjacent the hinge is flush with the upper surface of the weight-receiving platform; and,
FIG. 3 is a further pictorial view thereof, the display device being shown in a raised operational position, a lowered non-operational or storage position, and a plurality of intermediate positions between the raised and lowered positions.
It will be understood that FIGS. 1-3 show the personal weighing scale with an elliptical-shaped name plate adjacent the front edge of the scale which is shown solely for environmental purposes, and FIG. 1 shows digits on the display device which are shown solely for environmental purposes, and the name plate and digits form no part of the claimed design.