Table giving pull in pounds per ton required to move wagons over different surfaces. From Farm Implement News.
Tractor drawbar-pull
Jl. Soc. Automotive Engrs
1920
Article (Journal)
English
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Tractor weight and drawbar pull
Engineering Index Backfile | 1920
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SAE Technical Papers | 1920
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NTIS | 1965
NTIS | 1975