Lee De Forest 1
noundomain: person
Princeton WordNet [ver.3.1]
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EnglishDefinition
United States electrical engineer who in 1907 patented the first triode vacuum tube, which made it possible to detect and amplify radio waves (1873-1961)
Instance_Hypernym
a person trained in practical applications of the theory of electricity
inventor 1
noun
someone who is the first to think of or make something
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