Lamarr and Anthiel received a patent in 1941, but the enormous significance of their invention was not realized until decades later. It was first implemented on naval ships during the Cuban Missile Crisis and subsequently emerged in numerous military applications.
Cash back credit card reward programs started out rather simply, offering a flat percentage rate (typically 1 percent of purchases) rebated back to the customer in the form of a check at the end of the year or a statement credit.
If the store does not have a swipe pad, give the Visa card to the clerk who will process it. How to make a Visa PIN debit purchase at a store to get cash back. 1. Select ATM / Debit at the check out PIN pad. 2. Swipe your card and enter your PIN. 3. For cash back, select Cash Back or ask the clerk for cash back. 4. Verify the amount of your purchase, plus any cash back.