Click Here to Continue Viewing Current Query Results or Home to Start a New Query. Description: This Tech has a black plastic guard and cap and a black painted narrower ball-end handle with grooves and is put up in a black plastic case with a package of five Blue Blades. Manufacturer: The Gillette Safety Razor Company, Boston, Mass. Type: Gillette Country: USA Patent: U.S. number 2,270,388 Comment: Some of these models had all metal guards and caps. Source: sesam Editors: e sinker