US Patent # 2,428,166 - unknown

US Patent 2,428,166 - Alfred Letourneur main image

Alfred Letourneur’s claim to fame was that he set a record for the motor-paced measured mile of 108.9 m.p.h. in 1941. He was riding a Schwinn with 252 inch gear.

  • Publisher: US Patent and Trademark Office
  • Inventor: Alfred Letourneur
  • Country: USA
  • Date: application filed June 1944
  • Derailleur brands: unknown
  • Derailleurs: no known commercial product