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This Day, That Year – November 20

Sat 20 Nov 2021    
EcoBalance
| < 1 min read

French inventor Pierre Lallement patented the rotary crank bicycle on this day in 1866.

Did you know that:

• Willard Bundy patented the time card clock on this day in 1888
• A patent was granted to Garrett Morgan for a traffic signal on this day in 1923
• Microsoft Windows 1.0 was released on this day in 1985