![This Day in Patent History - On February 21, 1865 John Deere (blacksmith) received a patent for plow - Patent Yogi LLC This Day in Patent History - On February 21, 1865 John Deere (blacksmith) received a patent for plow - Patent Yogi LLC](https://patentyogi.com/wp-content/uploads/2016/02/PatentYogi_This-Day-in-Patent-History_February-21-2.jpg)
This Day in Patent History - On February 21, 1865 John Deere (blacksmith) received a patent for plow - Patent Yogi LLC
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Did John Deere's Best Invention Spark a Revolution or an Environmental Disaster? | At the Smithsonian| Smithsonian Magazine
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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
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Replica of John Deere Steel Plow Replica 1837 | Farm Equipment & Machinery Other Farm Machinery & Implements | Online Auctions | Proxibid
![DEERE PLOW, 1837. /nA drawing of John Deere's steel plow, developed and first manufactured in 1837 Stock Photo - Alamy DEERE PLOW, 1837. /nA drawing of John Deere's steel plow, developed and first manufactured in 1837 Stock Photo - Alamy](https://c8.alamy.com/comp/FF64X1/deere-plow-1837-na-drawing-of-john-deeres-steel-plow-developed-and-FF64X1.jpg)