ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,376,520, issued on Aug. 5, was assigned to J A Redekop Holdings Ltd. (Winkler, Canada).
"Land roller with replaceable chopping blades" was invented by Martin Grass (Winkler, Canada), Waldemar Berg (Winkler, Canada) and Johan Redekop (Winkler, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A land roller implement for chopping vegetation on the ground has one or more rollers including a drum body with mounting flanges protruding radially from the drum body onto which chopping blades can be fastened. The mounting flanges are fixed to the drum body with front weld beads that are spaced apart along the leading face of the mounting flanges. The blades a...