This Day in Patent History - On February 21, 1865 John Deere (blacksmith) received a patent for plow - Patent Yogi LLC
The Impact of John Deere's Plow
Amazon.com: John Deere Plow Na Mid-19Th Century American Hand Steel Plow By John Deere Contemporary Wood Engraving Poster Print by (18 x 24): Posters & Prints
The Original Steel Plow | John Deere LU
John Deere - ASME
In 1837, John Deere developed the steel plow
175 Years in the Making: Monumental John Deere “Firsts”
Everyday Tractors: Who created the steel plow? - YouTube
The Impact of John Deere's Plow
John Deere (inventor) - Wikipedia
The John Deere Story
John Deere Steel Plow
DEERE PLOW, 1837. /nA drawing of John Deere's steel plow, developed and first manufactured in 1837 Stock Photo - Alamy
Steel plow by john lepley
The Project Gutenberg eBook of John Deere's Steel Plow, by Edward C. Kendall.
The Evolution of the John Deere Steel Plow
The Project Gutenberg eBook of John Deere's Steel Plow, by Edward C. Kendall.
Innovative plow to be part of exhibit on Lincoln era
ic040910.html TILLER OF THE SOIL
The Expansion of John Deere's Steel Plow timeline | Timetoast
