John Deere did not invent the first cast steel pot. You may wish to re examine what your question really is.
1837
John Deere introduced the first steel plough in 1837
Yes he did.
He invented it in 12356
mechanical reaper
steel plow
Steel plow
yes he did. not john deere
Everything in the JOHN DEERe showroom.
Everything in the John Deere showroom.
John Deere did not invent tractors. He invented plows. John Deere as a company experimented with inventing their own tractor but ended up buying the Waterloo Boy Tractor Company instead. Few tractor experiments suceeded so instead they went the easy way out and bought an existing company.