Four Square (1937)
2,508 views · Published 30 July 2012 · 7:51 · Indexed 4 November 2026
Channel: US Auto Industry · 2012 · Autos & Vehicles
"An explanation of the proved mechanical fact that a box of four sides has more strength than a box of two or three sides. The frame in the modern motorcar is a four-sided steel box."
