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Band aid Hair drier Automobile with Combustion Engine Kool-Aid Liquid-Fueled Rocket Q-Tips Lie Detector

Bread Slicer Bulldozer Traffic Light Aerosol Sprays

Antibiotics

Color Television

Frozen Food

Hearing Aid

Iron Lung

Liquid Fuel Rocket

Quartz Timekeeping

Sticky Plasters

Talking Pictures

Television

Ultracentrifuge Videophone Those are inventions of the 1920's

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16y ago

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