32 ÉDUCATION ET COMMUNICATION | MT 3226 communication | BT1 téléphone | BT2 télécommunication | BT3 système de communication | RT publicité électronique non sollicitée [2031]
32 EDUCATION AND COMMUNICATIONS | MT 3226 communications | BT1 telephone | BT2 telecommunications | BT3 communications systems | RT unsolicited electronic advertising [2031]