Article: Patent No. D600,790 Issued on Sept 22., Assigned to Donaldson, Ornamental Design for Filter Cartridge (Minnesota Inventors)

ALEXANDRIA, Va., Sept. 28 -- Benny Kevin Nelson, Gregory L. Reichter and Paul Anthony Wendt, all from Bloomington, Minn., and Bruce Allen Boehrs of Blaine, Minn., have developed an ornamental design for a filter cartridge. The inventors were issued U.S. Patent No. D600,790 ...

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