Homepage>IEC Standards>IEC 60050-721:1991/AMD4:2019 - Amendment 4 - International Electrotechnical Vocabulary (IEV) - Part 721: Telegraphy, facsimile and data communication
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IEC 60050-721:1991/AMD4:2019
Amendment 4 - International Electrotechnical Vocabulary (IEV) - Part 721: Telegraphy, facsimile and data communication
Amendement 4 - Vocabulaire Electrotechnique International (IEV) - Partie 721: Télégraphie, télécopie et communication de données