This Design Patent shows the Schwinn GT100 - a derailleur that Shimano created for Schwinn. The adjustment screws in the drawing are not identical to those on the real item.

• Publisher: US Patent and Trademark Office
• Inventor: Norio Sato and Masashi Nagano
• Country: USA
• Date: Priority date March 1969
• Derailleur brands: Shimano, Schwinn
• Derailleurs: Schwinn GT100