Italian Patent # 1,082,551 - Gian Robert

Italian Patent 1,082,551 - Gian Robert Campione main image

This is the patent that time forgot - twice. In the first instance it shows a Gian Robert design that was actively used from the early 1960s - but the application date is 1977. By this time the design was well out of date. In the second instance, and conforming to stereotype, the Italian Patent Office took a mere 8 years to grant the patent.

It is, however, nice to see Marcello Gambato confirmed in writing as the source of this iconic design, with one adjustment screw in each knuckle.

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Gian Robert Campione derailleur (2nd style) thumbnail