For 1966 Triplex patent covers a tiny touch of the technology that made the Campagnolo Valentino such a runaway technological triumph.

• Publisher: Oficina Española de Patentes y Marcas
• Inventor: Antonio Bascaran Rementeria
• Country: Spain
• Date: Spanish application filed October 1966
• Derailleur brands: Triplex
• Derailleurs: unknown