Hvernig á að dæma "lee de forest" (Galician)

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  • Lee De Forest in a Male Voice
    "Lee De Forest" fram á Galician.
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  • Lee De Forest in a Male Voice
    "Lee De Forest" fram á Galician.
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    0

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Noun

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)

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