UK Patent # 726,801 - Campagnolo

UK Patent 726,801 - Campagnolo main image

This 1951 patent, for a single pulley derailleur that forshadows the Campagnolo Sport, bears a striking resemblance to Francesco Ghiggini's 1941 patent. Perhaps this is not surprising, given that Tullio Campagnolo bought Ghiggini's derailleur patents in 1951.

Browse associated derailleurs.

Campagnolo Sport (1013/2 1st style) derailleur thumbnail