French Patent # 783,214 - Vittoria

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French Patent # 783,214 - Vittoria

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Publisher: L'Institut national de la propriété industrielle
Inventor: Amedeo Nieddu and Tommaso Nieddu
Country: France
Date: Priority date August 1934
Derailleur brands: Vittoria
Derailleurs: Vittoria Margherita (2nd style)

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