evidence: University of Minnesota professor James J. (Crash) Ryan was the inventor of, and held the patent for, the automatic retractable lap safety belt. Ralph Nader cited Ryan's work in Unsafe at Any Speed and, following hearings led by Senator Abraham Ribicoff, President Lyndon Johnson signed two bills in 1966 requiring safety belts in all passenger vehicles starting in 1968.[29][30] [...] - Criss-cross: Experimental safety belt presented in the Volvo SCC. It forms a cross-brace across the chest.[41] [...] - ^ "Automobile safety belt system - Patent 2855215". Freepatentsonline.com. October 7, 1958. Archived from the original on 2012-10-13. Retrieved 2011-04-03.