ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,544,820, issued on Feb. 10, was assigned to Alfra GmbH (Hockenheim, Germany).
"Punching tool for mobile use" was invented by Klaus Pfeifer (Hainburg, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A punching tool that is capable of being used and modified independently of the shape of an opening to be punched, and is capable of being used for all round, angular and/or special-shaped tool contours. The punching tool generally comprises a cylinder with a fastener and a die having a lead-through for the fastener and a cavity with a stamp that is configured to connect to the fastener such that a spacer bushing is held to the cylinder."
The patent w...