Here are some of the key players:
* Ford: Some sources claim Ford implemented power steering on some of its tractors in the 1930s, but this information is scarce and difficult to verify.
* Allis-Chalmers: In the 1940s, Allis-Chalmers introduced a system called "Hydro Steer," which was an early form of power steering.
* Case: Case also developed a power steering system, though it's not clear exactly when it was first implemented on tractors.
* International Harvester: International Harvester began offering power steering as an option on some of its models in the 1950s.
It's important to note that the early power steering systems were often hydraulically driven, and the technology evolved significantly over time.
To summarize, it's difficult to pinpoint the absolute first tractor with power steering. However, the 1940s and 1950s are generally considered the periods when power steering started becoming more commonplace in agricultural equipment.
