George Crum invented the potato chip. Marjorie Joyner invented the "Permanent Wave Machine" now known as the hair dryer. "The Real McCoy" refers to Elijah McCoy and symbolizes quality workmanship. Garrett Augustus Morgan invented the combination telephone and telegraph called "Telegraphony." George Washington Carver used peanuts to create over 300 inventions. Benjamin Banneker was inspired by a pocket watch to build a striking clock from wood. Garrett Augustus Morgan invented the "Safety Hood" now known as the gas mask. Frederick McKinley Jones invented the refrigerated truck. Bessie Blount invented devices to help WWI amputees. Madame CJ Walker