Wallis model K tractor. Weight is said to be kept well below average for machines of its rating by means of specially designed U-framewhich serves as supporting member as well as housing.
New tractor of unit construction has low weight
Automotive Industries
Automotive Industries ; 42 , n 25
1920
4 pages
5 Figs.
Article (Journal)
English
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Unit construction of new tractor facilitates production
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