This Day, That Year – February 20
Sun 20 Feb 2022
| < 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