US Patent 2,693,116 - Simplex

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US Patent # 2,693,116 - Simplex

US Patent 2,693,116 - Simplex Tour de France main image

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Publisher: US Patent and Trademark Office
Inventor: Lucien Juy
Country: USA
Date: US application filed September 1950, French application filed November 1949
Derailleur brands: Simplex
Derailleurs: Simplex Tour de France

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