In the most recent 'Campagnolo Club' newsletter, they show the first registered trademarks of the company. The first trademark logo was registered on January 12th 1946 and consisted of a winged wheel with the word cambio in the spokes and Campagnolo both on the QR lever and below the wheel in a scroll. On April 6th 1948, the second trademark was registered. It was very similar to the first logo, with updated graphics. The third logo was the stylized signature of Tullio on the illuminated world logo and was registered on September 17th 1953.
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Steven Maasland
Moorestown, NJ