Discussion on "Voice-frequency signalling and dialling in long-distance telephony" before the Institution, 18th December, 1941
Volume :
89
Issue :
5
fYear :
1942
fDate :
3/1/1942 12:00:00 AM
Firstpage :
64
Lastpage :
73
Journal_Title :
Journal of the Institution of Electrical Engineers - Part III: Communication Engineering, including the Proceedings of the Wireless Section of the Institution
