Many of the most important inventions of the 20th century began in Dayton.
Here's a list of some, in no particular historical or alphabetical order...
Stepladder
LCD Displays
Photoelectric Cell
Movie Projector
Self-contained Refrigerator
Movie Camera
Black Light
Movie Film
Carbonless Copy Paper
Movie Theatre
Ethyl Gasoline
Ink Jet Print
Home Pizza Delivery
Parking Meters
Railroad Boxcar Wheels
Cash Register
Microfiche
Gas Masks
Cellophane Tape
Parachute
Heart-Lung Machine
Auto Air Bags
Soap Box Derby
Chrome Plating
Motorized Wheelchair
Filter Cigarettes
Pull Tab and Pop Top
Radar Detectors
Beverage Cans
"Mae West" Life Preserver
Ice Cube Tray
Mood Ring
Room Air Conditioner
Microencapsulation
and of course, our most famous invention
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