The 1819 patent was the 19th patent issued for a plow in the United States. The first patent on a cast-iron plow had been issued to Charles Newbold of New Jersey in 1793.
Moldboard plow The 1819 patent was the 19th patent issued for a plow in the United States. The first patent on a cast-iron plow had been issued to Charles Newbold of New Jersey in 1793
