What was invented in the 1940s by Percy Spencer, an American self-taught engineer from Howland, Maine, who was building magnetrons for radar sets?
Microwave cooker Microwaving Popty ping Microwave Oven Radarrange Radarange Nuclearator Microwaveable Browning tray Radar range Microwave refrigerator combo Microwavable Multimode Applicator Cooking/Microwaving Microwave cooking Multimode Applicators Microwave ovens Microwave oven