Commercial radio | KDKA Pittsburgh | 1920 | Pittsburgh, PA | USA (6)
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Loudspeaker | amplified speech | 1924 | Chester W. Rice, Edward W. Kellogg | USA
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Yagi-Uda antenna | radio transmission | 1926 | Hidetsugu Yagi, Shintaro Uda | Japan
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Car radio | radio on the move | 1926 | William P. Lear | USA
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Enigma machine | code writing machine | 1926 | Arthur Scherbius | Germany
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Television | first transmission | 1927 | Philo T. Farmsworth | USA (29)
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Sound synchronized animation | talking cartoons | 1928 | Walt Disney | USA
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Color television | | 1928 | John Logie Baird | UK
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Electric guitar | | 1931 | Adoph Rickenbacker | USA
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Frequency modulation radio | FM radio | 1933 | Edwin H. Armstrong | USA
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RADAR | functional | 1935 | Robert Watson-Watt | UK
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Richter scale | earthquake detection and rating | 1935 | Charles Francis Richter, Beno Gutenberg | USA
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Bass guitar | electric | 1935 | Paul Tumarc | USA
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Walkie talkie | 2 way radio | 1938 | Alfred J. Gross | USA
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Citizens band radio | CB radio | 1945 | Alfred J. Gross | USA
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Credit card | Diner's Club | 1946 | Frank McNamara, Ralph Schneider | USA (54)
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Weather radar | forecasting | 1948 | David Atlas | USA
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Cable television | wired TV signal | 1948 | John Watson | USA
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Pager | radio notification | 1949 | Alfred J. Gross | USA
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Semiconductor pocket radio | solid state electronics | 1952 | Norman Krim | USA
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Voice recognition | over telephone | 1952 | Bell labs | USA
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Color television broadcasting | | 1953 | RCA labs | USA
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RADAR speed gun/camera | speed measure | 1954 | Maurits Gatsonides | Netherlands
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MASER | microwave amplification by the stimulated emission of radiation | | 1955 Charles Hard Townes, Arthur Schawlow | USA
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Noise canceling headphones | aviator | 1955 | Lawrence Jerome Fogel | USA
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Television remote control | wireless | 1955 | Eugene Polley | USA
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Digital clock | | 1956 | D.E .Protzman | USA
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HiFi | high fidelity sound | 1958 | Dieter Rams, Hans Gugelot | Germany
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CAD (DAC-1) | computer aided design | 1959 | IBM | USA
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Space War | first video game | 1962 | Steve "Slug" Russell, MIT | USA
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Touch tone pad | keyed numerical phone dialing | 1962 | John Elias Karlin | USA
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Sketch pad (CAD) | computer aided design | 1963 | Ivan Sutherland | USA
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Moog synthesizer | | 1964 | Robert Moog | USA
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Flat screen television | | 1964 | Donald Bitzer, Gene Slottow, Robert Wilson | USA
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Touchscreen | replaces/augments keyboard | 1965 | Eric A Johnson, Samuel C. Hurst | UK/USA (85)
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PIN | personal identification number for ATM | 1966 | James Goodfellow | UK
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Virtual reality headset | VR | 1968 | Ivan Sutherland | USA
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Boombox | portable stereo | 1968 | Phillips | Netherlands
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Video game console | | 1968 | Ralph H. Baer | USA
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LASER printer | | 1969 | Gary Starkweather | USA
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Early cellular phone technology | | 1970 | Amos Joel, Bell labs | USA
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Pocket calculator | | 1970 | Busicom Co. | Japan
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Email | | 1971 | Ray Tomlinson | USA (68)
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Computerized telephone exchange | | 1971 | Erna Schneider Hoover, Bell labs | USA
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3-D computer animation | | 1972 | Edmund Catmull | USA
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Pong video game | | 1972 | Al Alcorn, Nolan Bushnell | USA
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CGI, computer generated imagery | | 1973 | Edwin Catmul, Fred Parke | USA
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Practical cell phone | mobile, wireless telephone | 1973 | Donald Cox, W. Rae Young, Eric Tigerstedt | USA (23)
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Thermal inkjet printer | | 1977 | Ichiro Endo, Canon | Japan
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Sony Walkman | portable music | 1979 | Nobutoshi Kihara, Akio Morita | Japan
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Cordless phone | home use without wires | 1980 | George Sweigert, Teri Pall | USA
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Online stock trading | | 1982 | Bill Porter | USA
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Dragon speech recognition | words to print | 1982 | James Baker, Janet Baker | USA
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Nintendo entertainment system | | 1983 | Nintendo | Japan
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Caller identification | caller ID | 1988 | Shirley Ann Jackson, Kazuo Hashimoto | USA/Japan
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