B59-691 CARPET STRETCHER. Pearson Patent. This gizmo, designed to simultaneously stretch and tack down the edges of a carpet, was patented by Martin Pearson of Minnesota on 1/26/92. Pearson subsequently revised it to convert it to the Pearson automatic nailer that is more familiar. Beautiful blue paint with gold highlighting, 90+% complete, marked with the patent date and "M'f'd by P.J. Linde, Robbinsdale, Minn." Fine 200-400