French Patent 889,531 addition 53,648 - Huret scan 3

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French Patent # 889,531 addition # 53,648
scan 3 of 4

Publisher: L’Institut national de la propriété industrielle
Document: French Patent # 889,531 addition # 53,648 - Huret
Date: French application December 1942
Derailleur brands: Huret
Derailleurs: prototype Huret Dural Competition

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Huret Dural Competition derailleur thumbnail

Huret Dural Competition (3rd style) 1944?