IEC 60050-721:1991/AMD4:2019

Amendment 4 - International Electrotechnical Vocabulary (IEV) - Part 721: Telegraphy, facsimile and data communication

Circulation Date: 2019-10
Edition: 1.0
Language: EN-FR - bilingual english/french
Seitenzahl: 5 VDE Artno.: 248152