French Patent 1,258,146 Addition 79,077 - Simplex

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French Patent # 1,258,146 Addition # 79,077 - Simplex

French Patent 1,258,146 Addition 79,077 - Simplex main image

Publisher: L’Institut national de la propriété industrielle
Inventor: Lucien, Charles, Hippolyte Juy
Country: France
Date: French application January 1961
Derailleur brands: Simplex
Derailleurs: Simplex Juy Export 61

French Patent 1,258,146 Addition 79,077 scan 1 - Simplex thumbnail

French Patent 1,258,146 Addition 79,077 scan 2 - Simplex thumbnail

French Patent 1,258,146 Addition 79,077 scan 3 - Simplex thumbnail

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Simplex Juy Export 61 derailleur thumbnail

Simplex Juy Export 61 1961