French Patent 780,238 - Rivierre

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French Patent # 780,238 - Rivierre

French Patent 780,238 - Rivierre main image

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Publisher: L’Institut national de la propriété industrielle
Inventor: Gaston Louis Clément Rivierre
Country: France
Date: French application October 1934
Derailleur brands: Rivierre
Derailleurs: unknown

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