The year 1904 in radio involved some significant events.
Events 7 January (with effect from 1 February) – The Marconi Company establishes "CQD" as one of the first international maritime radio distress signals. 24 May – The United States Patent Office awards Marconi a patent for a "Wireless signaling system".. 11 October – Brazilian priest and researcher Roberto Landell de Moura is awarded a patent by the United States Patent Office for a "Wave-transmitter". 16 November – English electrical engineer John Ambrose Fleming, working for Marconi, is awarded a United States patent for the Fleming valve, the first thermionic vacuum tube, a two-electrode diode, which he calls the oscillation valve.. First radio transmission of music, at Graz, Austria.
Births 5 January – Anona Winn, Australian-born British broadcasting personality (d. 1994) 15 January – Charles Hill, British physician, medical and broadcast executive, politician and "The Radio Doctor" (d. 1989) 23 February – William L. Shirer, American war correspondent (d. 1993) 8 May – John Snagge, English radio newsreader (d. 1996) 24 May – Sefton Delmer, German-born British propaganda radio broadcaster (d. 1979) 14 August – Lindley Fraser, Scottish-born academic economist and broadcaster (d. 1963) 27 October – Les Mitchel, American radio and film producer, director and actor (d. 1975)Armstrong, Alice Catt (1950). Who's Who in Los Angeles County. Los Angeles, CA: Who's Who Historical Society. p. 145. . 24 November – Pegeen Fitzgerald, American radio talk-show host (both alone and with her husband, Ed) on WOR and WJZ in New York City and Norcatur, Kansas (d. 1989)
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