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This Day, That Year – February 20

Sun 20 Feb 2022    
EcoBalance
| < 1 min read

John Drummond received a patent for candle moulds on this day in 1846.

Did you know that:

• Cyrus Baldwin patented the hydraulic electric elevator on this day in 1872
• Luther Crowell patented a machine that manufactured the square-bottom paper grocery bags on this day in 1872
• Silas Noble and J.P. Cooley patented a toothpick manufacturing machine on this day in 1872



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