Issuer ? LE MATERIEL TELEPHONIQUE
| Siège social | 
| Quai de boulogne, 46-47 - Boulogne-Billancourt (France , Paris ) appearing in yearbooks from 1948 to 1953 | 
| Siège social | 
| Quai de boulogne, 46-47 - Boulogne-Billancourt (France , Paris ) appearing in yearbooks from 1948 to 1953 |