Theremin went to Germany to sell both the radio watchman and Termenvox patents to the German firm Goldberg and Sons
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Theremin went to Germany to sell both the radio watchman and Termenvox patents to the German firm Goldberg and Sons
Text from Wikipedia, available under CC BY-SA 4.0.
Captured 2026-08-18 from Wikipedia. The archived copy is preserved so this citation survives link rot.