ALEXANDRIA, Va., Oct. 8 -- United States Patent no. D1,096,174, issued on Oct. 7, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).
"Cleaning brush" was invented by Matthew D. Chaffee (Minneapolis) and Mark W. Baldwin (Woodbury, Minn.).
The patent was filed on June 5, 2023, under Application No. D/893,998.
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