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jul 21, 1928 - Theremin 1928 - Patented by Soviet inventor Léon Theremin. It consists of two antennas that sense the relative position of the thereminist's hands.
Added to timeline:
Keyboard Instruments Pre 1963 Joe Branch
By
Joe Branch
5 Oct 2017
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Date:
jul 21, 1928
Now
~ 97 years ago
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