Click Here to Continue Viewing Current Query Results or Home to Start a New Query. Description: Keen-Edge Hone Manufacturer: Clark & Johnson Distributors, 1629 McAllister St., San Francisco, CA Type: Hone-Carborundum Country: USA Patent: US - 1503392(7/29/1924), 1537454(5/12/1925), 1626248(4/26/1927), 1630551(5/31/1927) Comment: Source: twillard Editors: