US Patent D649989 Dual helical cutter for pencil sharpener

Patent D649989 was granted and assigned to Elmer'S Products, Inc. on December, 2011 by the United States Patent and Trademark Office.

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Patent Inventor Names

Benjamin Dunlap0

Date of Patent

December 6, 2011

Patent Application Number

293964200

Date Filed

June 29, 2011

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