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Newspaper copy (C. Photonews). E. N. Pickerill, Chief radio officer of the giant of the seas, the "Leviathan," and the noted radio engineer and inventor, Dr. Lee DeForest. Pickerill is pointing out to the inventor the dual antenna system, and explaining how it is used in daily traffic on board the ship. Dr. DeForest sailed on the "Leviathan" to complete some new foreign radio inventions. Radio World September 22, 1923.
Ships--Electronic equipment (LCSH) Radio--Installation on ships (LCSH) De Forest, Lee Pickerill, Elmo N. (Elmo Neale)