It’s National Donut Day! Williamson began rolling in the dough with this patented 1950 invention.

It's National Donut Day! Williamson began rolling in the dough with this patented 1950 invention.

June 8, 2015 by admin

Patent Information

Rotary doughnut cutter
US 2525987 A
Publication date: 17 Oct 1950
Filing date: 29 Sep 1947
Priority date: 29 Sep 1947
Inventors: Adolph Williamson Sophus

Written by admin