US Patent # 2,099,477

US Patent 2,099,477 - Rota main image

Manufactured in Lyon, France, the Rota derailleur was exported to the USA - hence this patent.

  • Publisher: US Patent and Trademark Office
  • Inventor: Jean Gruyer, assigned to: Victor Simon
  • Country: USA
  • Date: US application filed October 1936, French application filed November 1935
  • Derailleur brands: Rota
  • Derailleurs: Rota
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