German Patent # 858,934 - Altenburger

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German Patent # 858,934 - Altenburger

German Patent 858,934 - Altenburger main image

Publisher: Deutsches Patent- und Markenamt
Inventor: Gustav Herrmann
Country: Germany
Date: Priority date June 1951
Derailleur brands: Altenburger, development of a Cervino design
Derailleurs: Altenburger S-O

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Altenburger S-O thumbnail

Altenburger S-O 1951?