Gripnstik Company (Dover, OH) - Formed in 1924/1925 to produced a unique "plier-wrench" invented by Karl Potschner. However, please note the "first use" date on the trademarks below. Principals include H. N. Bigler - Pres., C. C. Maurer - VP, Fred P. Potschner - Sec., Karl Potschner - Treas. It appears the company only lasted until approximately 1930.
DATAMP Patents for Karl Potschner
Trade names, Brands and Trademarks: