How the Trampoline Came to Be | Innovation| Smithsonian Magazine
TRAMPOLINE HISTORY - - George Nissen on the Trampoline at Age of 90! (2006) - YouTube
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Stream George Nissen, Inventor of the Trampoline - The History Show, RTÉ Radio 1 by Lorcan Clancy | Listen online for free on SoundCloud
De uitvinding van de trampoline, met de hulp van het circus, het leger en Mexico City | Het Nieuwsblad Mobile
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Trampoline inventor, former Cedar Rapids businessman George Nissen dies at 96 | The Gazette
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George Nissen: Inventor of the trampoline | The Independent | The Independent
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How the Trampoline Came to Be | Innovation| Smithsonian Magazine
