I think that the two rear derailleurs might be (from the top):

• Charvin Le Lautaret (France)
• Pelletier Super-Meilhor (France)

• Publisher: New Cycling
• Document: New Cycling May 1981 - '81 Derailleur Collection
• Date: May 1981
• Derailleur brands: Charvin, Pelletier
• Derailleurs: Charvin Le Lautaret , Pelletier Super-Meilhor