French Patent 642,104 - Chemineau L-Izoard scan 3

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French Patent # 642,104
scan 3 of 5

Publisher: L’Institut national de la propriété industrielle
Document: French Patent # 642,104
Date: French application October 1927
Derailleur brands: Chemineau
Derailleurs: Chemineau L’Izoard

French Patent 642,104 - Chemineau L-Izoard scan 3 main image

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