 In November 1955, Mills Industries, Inc. announced a coin-operated vending machine, developed jointly with H. J. Heinz Company, that would dispense a tin can of hot food (one of a selection of six soups or dinners), a can opener, and a spoon.The cans were maintained a constant temperature of 150 °F (65 °C).The machine was intended for use in factories or large offices, and the company claimed that it was a first of a kind in the United States.