Life Changing Inventions

Who improved the ironing board in 1892?

• Alexander Miles

• Marie Van Brittan Brown

• Sarah Boone

• Garrett Morgan

What invention is Marie Van Brittan Brown known for?

• Refrigerated Trucks

• Electret Microphone

• Home Security System

• Automatic Elevator Doors

In what year was the three-light traffic signal invented by Garrett Morgan?

• 1940

• 1964

• 1887

• 1923

Which invention is credited to Frederick McKinley Jones?

• Carbon Light Bulb Filament

• Electret Microphone

• Refrigerated Trucks

• Color IBM PC Monitor

What did Alexander Miles invent that improved elevator safety?

• Home Security System

• Gas Mask

• Automatic Elevator Doors

• Improved Sewing Machine

Who co-invented the electret microphone in 1964?

• James E. West

• Lewis Latimer

• Frederick McKinley Jones

• Mark Dean

What significant improvement did Lewis Latimer contribute to the light bulb?

• Carbon Filament

• Three-Light System

• Electret Component

• Automatic Switch

Which of these was co-invented by Mark Dean?

• Gas Mask

• Improved Ironing Board

• Automatic Elevator Doors

• Color IBM PC Monitor