In the 1950s Tullio Campagnolo loved a trademark - in addition to a few design classics he built up an extensive collection of more-or-less meaningless motifs. Here the world is held spinning in a giant, but style-free, letter C.

• Publisher: US Patent and Trademark Office
• Inventor: Tullio Campagnolo
• Country: USA
• Date: First use December 1954
• Derailleur brands: Campagnolo
• Derailleurs: nothing specific