The ornamental design for a sheetmetalblank used in the manufacture of polarized terminal blades, substantially as shown and described.
FIG. 1 is an elevational view of a sheet metal blank used in the
manufacture of polarized terminal blades showing my new design, the blank
being broken away at opposite extremities to indicate indeterminate
length;
FIG. 2 is a top edge view thereof; and
FIG. 3 is a bottom edge view thereof.
The side opposite that shown in FIG. 1 is a mirror image thereof.