French Patent # 793,271 Addition # 46,597 - Simplex scan 1

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French Patent # 793,271 Addition # 46,597 - Simplex
scan 1 of 2

Publisher: L’Institut national de la propriété industrielle
Document: French Patent # 793,271 Addition # 46,597 - Simplex
Date: Priority date September 1935
Derailleur brands: Simplex
Derailleurs: Simplex Selection

French Patent 793,271 Addition 46,597 - Simplex scan 1 main image