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

.tm-testi .tm-testi-slider__next, .tm-testi .tm-testi-slider__next:hover, .elementor-widget-container .tm-testi .tm-testi-slider__next, .elementor-widget-container .tm-testi .tm-testi-slider__next:hover{--wpr-bg-38658c74-4d6a-42eb-a312-b4c763f3dee4: url('https://patentyogi.com/wp-content/themes/lanterno/assets/images/tm-testi-slider-next.png');}.tm-testi .tm-testi-slider__prev, .tm-testi .tm-testi-slider__prev:hover, .elementor-widget-container .tm-testi .tm-testi-slider__prev, .elementor-widget-container .tm-testi .tm-testi-slider__prev:hover{--wpr-bg-92cc06cf-981e-4667-8a7c-50a26a4670c1: url('https://patentyogi.com/wp-content/themes/lanterno/assets/images/tm-testi-slider-prev.png');}div.wpcf7 .ajax-loader{--wpr-bg-b9e841d5-9628-4e55-9e48-42197a62d2b0: url('https://patentyogi.com/wp-content/themes/lanterno/assets/images/ajax-loader.gif');}.story-with-background{--wpr-bg-2d23edbb-f868-4ce9-8d2e-d1abb5b31a37: url('https://patentyogi.com/wp-content/plugins/royal-elementor-addons/assets/css/');}.bdt-lazy-loading{--wpr-bg-7e0c19f9-5ff1-44de-b4d9-0f019b44822b: url('https://patentyogi.com/wp-content/plugins/bdthemes-element-pack-lite/assets/images/loading.svg');}.showcase-active .showcase-panel{--wpr-bg-9dcf8181-f5b3-4332-b4b4-6ea1078a98ad: url('https://patentyogi.com/wp-content/themes/lanterno/assets/images/header_bg.jpg');}body.error404{--wpr-bg-61c4a558-fbc2-4915-a8ca-3071f61073a7: url('https://patentyogi.com/');}.header-wrapper{--wpr-bg-c7472ca4-602f-4e27-bf90-8e0c36c4d6f7: url('https://patentyogi.com/');}.header-wrapper{--wpr-bg-9228aba8-f98d-4a67-9960-2cb74b3c1c8a: url('https://patentyogi.com/');}

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

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