Check Protection Sign/Endrsng Mach (Wholesale) is a subdivision of the Office Equipment (Wholesale) industry that specializes in the distribution of machines used for check protection and endorsement. These machines are designed to prevent check fraud by imprinting security features on checks, such as watermarks, microprinting, and fluorescent fibers. They also allow for the endorsement of checks with a company's name and account number, making it easier to deposit and process checks. Companies in this industry typically sell these machines to banks, credit unions, and other financial institutions.