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Engineering professor Arturo Castellani , Ph D. was an Italian inventor (see the patent of his cathodic tube "Telepantoscopio", 1937). He was the project manager of SAFAR company (Societe Anonima Fabbricazione Apparecchi Radio), Milan, Italy from 1929 to 1945. (Information courtesy of Diego Verdegiglio and Gino Brizioli)
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