Italian patent # 1,123,752

1. Date: Italian application 1979
   

2. Derailleur brands: Rino
   

3. Derailleurs: Rino (1st style)
   

see also US trademark # 1,198,612

1. Dates: first use 1979, US application 1981
   

2. Derailleur brands: Rino
   

3. Derailleurs: nothing specific