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DOCUMENTS
French Registered Design # 31966-001 - Simplex
Text
Full size
A natty, downtube-fitting chain tension arm.
Publisher:
L’Institut national de la propriété industrielle
Inventor: Lucien Juy
Country:
France
Date: French application February
1936
Derailleur brands:
Simplex
Derailleurs: Super Simplex
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