ALEXANDRIA, Va., June 12 -- United States Patent no. D1,074,332, issued on May 13, was assigned to DynaVap LLC (DeForest, Wis.).
"Grinder and fidget device" was invented by Austin Leasa (Monona, Wis.), Troy Sonnleitner (Sun Prairie, Wis.) and George R. Breiwa III (Dane, Wis.).
The patent was filed on Oct. 15, 2021, under Application No. D/811,733.
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