French Patent # 2,520,693 - Simplex scan 2

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French Patent # 2,520,693 - Simplex
scan 2 of 13

Publisher: L’Institut national de la propriété industrielle
Document: French Patent # 2,520,693 - Simplex
Date: Priority date February 1982
Derailleur brands: Simplex
Derailleurs: none - or many

French Patent 2,520,693 - Simplex scan 002 main image