US Patent # 4,127,038 - Browning

US Patent 4,127,038 - Browning SmartShift 400 main image

Man, that’s a family business.

  • Publisher: US Patent and Trademark Office
  • Inventor: Bruce W. Browning, assigned to: David L. Browning, Marc S. Browning, Christopher M. Browning, John B. Browning, Gloria S. Browning, Michael C. Browning and Paul C. Browning
  • Country: USA
  • Date: application filed August 1976
  • Derailleur brands: Browning
  • Derailleurs: Browning SmartShift 400