ITU-T-R.49 Interband Telegraphy Over Open-Wire 3-Channel Carrier Systems

ITU-T-R.49 - 1960 EDITION - CURRENT



Interband Telegraphy Over Open-Wire 3-Channel Carrier Systems


ORDER



Document Number

ITU-T-R.49

Revision Level

1960 EDITION

Status

Current

Publication Date

Dec. 1, 1960