French Patent # 760,855 Addition # 44,580 - Simplex scan 1

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French Patent # 760,855 Addition # 44,580 - Simplex
scan 1 of 4

Publisher: L’Institut national de la propriété industrielle
Document: French Patent # 760,855 Addition # 44,580 - Simplex
Date: Priority date March 1934
Derailleur brands: Simplex
Derailleurs: unknown

French Patent 760,855 Addition 44,580 - Simplex scan 1 main image