略語大辞典 [C] 31 PTT Post Telephone & Telegraph (administration) (フランスやドイツの)郵便電報電話(局). Post Telephone & Telegraph (administration); e.g. of France Telecom, Deutsche Bundespost Telekom; or Post Telegram Telegraph, in (Belgium); [C]. 丸善「略語大辞典」JLogosID : 11856889