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DISRAELI
DOCUMENTS
French Patent # 669,030 Addition # 37,321
scan 1 of 3
Publisher:
L’Institut national de la propriété industrielle
Document:
French Patent # 669,030 Addition # 37,231 - Simplex
Date: French application July
1929
Derailleur brands:
Simplex
Derailleurs: Le Simplex
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