Showing posts with the label 1904Show All
Valve Diode
Fleming invents the first true electronic device (1904) When British electrical engineer John Ambr…
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Answering Machine
Poulsen develops a solution for missed phone calls ( 1904 ) Dane Valdemar Poulsen ( 1869-1942 ) s…
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Automatic Transmission ( 1904 ) | Sturtevant renders gear sticks superfluous
The Sturtevant family business was founded in 1883 by Thomas L. Sturtevant, with the aim of satisf…
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