French Patent 669,030 Addition 45,176 - Simplex scan 1

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French Patent # 669,030 Addition # 45,176
scan 1 of 3

Publisher: L’Institut national de la propriété industrielle
Document: French Patent # 669,030 Addition # 45,176 - Simplex
Date: French application July 1934
Derailleur brands: Simplex
Derailleurs: Simplex Champion de France 35

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Simplex Champion de France 35 thumbnail

Simplex Champion de France 35 1935