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Sólo las descripciones de nivel superior Tecnología de la comunicación
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LEWIS, Dr Wilfrid Bennett (1908-1987)
LEWIS, Dr Wilfrid Bennett (1908-1987)
Commonwealth Telecommunications Organisation
Commonwealth Telecommunications Organisation
Post Office (Telecommunications) Registered Files: Minuted Papers
Post Office (Telecommunications) Registered Files: Minuted Papers
Post Office: Factories Department
Post Office: Factories Department
Central administration records of the Post Office Telegraph and Telephone Service
Central administration records of the Post Office Telegraph and Telephone Service
LEVER, Capt George Harold (1892-1973)
LEVER, Capt George Harold (1892-1973)
GLOBE TELEGRAPH AND TRUST COMPANY LIMITED
GLOBE TELEGRAPH AND TRUST COMPANY LIMITED
INTERNATIONAL SUBMARINE TELEGRAPH MEMORIAL
INTERNATIONAL SUBMARINE TELEGRAPH MEMORIAL
CHERRY, Colin (1914-1979)
CHERRY, Colin (1914-1979)
Chelsea College Department of Electrical Engineering Records
Chelsea College Department of Electrical Engineering Records