Discussion on ¿Voice-frequency signalling and dialling in long-distance telephony¿ before the Mersey and North Wales (Liverpool) Centre, at Liverpool, 2nd March, 1942

• Book ID: 119740852
• Publisher: Institution of Electrical Engineers
• Year: 1942
• Weight: 510 KB
• Volume: 89
• Category: Article
• ISSN: 2054-0647
• DOI: 10.1049/ji-3-1.1942.0024