Descrizione Tipologia Città Data Documento Fonte
sm19210000 Some recent development in wireless telegraphy (1921) Scritti di Marconi Birmingham 1921-01-01 Copia Fondazione Guglielmo Marconi
Note: Lecture delivered within a few days of the 20th anniversary of the transatlantic signals before the Birmingham and Midland Institute. Presidential address. Specially printed by order of the Council of the Birmingham and Midland Institute, for circulation among its members, in December 1921.