Click Here to Continue Viewing Current Query Results or Home to Start a New Query. Description: Spiro Sharpener Manufacturer: Unique Products Co., Baltimore, MD Type: Rollers-2 Country: USA Patent: US - 1319149(10/21/1919), RE15250(12/20/1921), 1624592 and 1624593(4/12/1927) Comment: Source: twillard Editors: