DISRAELI DOCUMENTS
US Patent # 5,540,118
Publisher: US Patent and Trademark Office
Inventor: John L. Calendrille Jr.
Date: US application filed May 1994
Derailleur brands: Vivo
Derailleurs: Vivo Grunge Guard
This patent does not refer to a Vivo rear derailleur - it describes the Vivo Grunge Guards, a set of unsightly rubber covers designed to keep your derailleurs clean.
