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Air Conditioners
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Cameras
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Clocks
Clothing and Insulation
Compact Disc Players
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Electric Power Distribution
Electric Power Generation
Electronic Air Cleaners
Elevators
Falling Balls
Flashlights
Fluorescent Lamps
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Knives and Steel
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Magnetically Levitated Trains
Medical Imaging and Radiation
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Tape Recorders
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The Sea and Surfing
Thermometers and Thermostats
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Water Faucets
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