German Patent # 580,550 - Durex scan 1

DISRAELI DOCUMENTS

German Patent # 580,550 - Durex
scan 1 of 3

Publisher: Deutsches Patent- und Markenamt
Document: German Patent # 580,550 - Durex
Date: Priority date September 1932
Derailleur brands: Durex
Derailleurs: Durex

German Patent 580550 scan 01 main image