A stropping device of a blade for safety razors, capable of allowing an existing razor blade to be repeatedly used, is disclosed. The stropping device consists of a main body and an adhesive sheet attached on the back surface of the main body. A guide groove part is longitudinally formed on a front portion...http://www.google.se/patents/US6062970?utm_source=gb-gplus-sharePatent US6062970 - Stropping device of blade for safety razors
