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1870s | 1880s | 1890s | 1900s | 1910s | 1920s | 1930s | 1940s | 1950s | 1960s | 1970s | 1980s
Theodore Vail
Theodore Vail
Built the AT&T monopoly
John J. Carty
John J. Carty
AT&T Chief Engineer
Lars Magnus Ericsson
Lars Magnus Ericsson
Swedish telephone entrepreneur and inventor
George Ashley Campbell
George Ashley Campbell
Long-distance telephony innovator
Hilda Ericsson
Hilda Ericsson
Swedish entrepreneur
J. P. Morgan
J. P. Morgan
AT&T financier and banker
Lee de Forest
Lee de Forest
Vacuum tube inventor
Guglielmo Marconi
Guglielmo Marconi
Wireless telegraph (radio) inventor
Reginald Fessenden
Reginald Fessenden
Wireless telegraph (radio) innovator
Mihajlo Pupin
Mihajlo Pupin
Loading coil inventor

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