
The tractor, a story of innovation(s) ( Terre et Progrès, la grande histoire de l’innovation agricole )
From the invention of the 3-point hitch and the PTO on the "little gray" tractor made by Massey, to the current computer-controlled monsters, the history of the tractor industry seen via its innovations, with Pierre Criado, editor-in-chief of Entraid, the Cuma magazine, and Didier Debroize, Mechanical engineer in the agronomy department of the Bretagne Chamber of Agriculture (of France).

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"The tractor, a story of innovation(s)"
"The tractor, a story of innovation(s)"
Terre et Progrès, la grande histoire de l’innovation agricole
La grande histoire de l’innovation agricole
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