Discussion on "Voice-frequency signalling and dialling in long-distance telephony" before the North Midland Centre, at Leeds, 17th January, 1942
Volume :
89
Issue :
7
fYear :
1942
fDate :
9/1/1942 12:00:00 AM
Firstpage :
178
Lastpage :
181
Journal_Title :
Journal of the Institution of Electrical Engineers - Part III: Communication Engineering, including the Proceedings of the Wireless Section of the Institution
