submarine, automatic, and wirelesstelegraphy; burglar-alarm, fire-alarm, and police-alarm telegraphy; printing telegraphy; military and naval signaling;
New York: Publishers Weekly. Trevent, Edward. (1911) The A B C of WirelessTelegraphy: A Plain Treatise on Hertzian Wave Signalling. Lynne, Massachusetts:
(1950) p. 126. "Cuss Words in the Wireless"], New York Sun, 27 de agosto de 1903, p. 1. (loc.gov) "WirelessTelegraphy at the St. Louis Exposition", The