French Patent 1,081,992 - Simplex scan 1

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French Patent # 1,081,992
scan 1 of 3

Publisher: L’Institut national de la propriété industrielle
Document: French Patent # 1,081,992 - Simplex
Date: French application May 1953
Derailleur brands: Simplex
Derailleurs: Simplex Juy 51

French Patent 1,081,992 scan 1 - Simplex main image