Benefits derived by analysis made by Standard Oil Co. of Ohio of application of semi-trailer to petroleum transportation; means whereby interchangeability of tractors and trailers was accomplished throughout entire field of operation; semi-trailer spe cifications developed; adaptation of tractors to trailers; extra heavy-duty tractor justified; mechanical flexibility and operating safety; assembly of units and initial cost.
Tractor-semi-trailer operation
Soc. Automotive Engrs. -- Jl
Society of Automotive Engineers -- Journal ; 26 , n 1
1930
3 pages
1 Fig.
Article (Journal)
English
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