French Patent 669,030 - Simplex scan 1

DISRAELI DOCUMENTS

French Patent # 669,030
scan 1 of 2

Publisher: L’Institut national de la propriété industrielle
Document: French Patent # 669,030 - Simplex
Date: French application January 1929
Derailleur brands: Simplex
Derailleurs: Le Simplex

French Patent 669,030 - Simplex scan 1 main image