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George Nissen and the Trampoline – Lichtenberger Engineering Library
Time Machine: George Nissen, trampoline inventor | The Gazette
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The Olympic trampoline tradition: Remembering the man who taught the world to bounce | The World from PRX
How the Trampoline Came to Be | Innovation| Smithsonian Magazine
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Six Sizes of Trampolines Manufactured by Nissen Trampoline Co' Photographic Print | Art.com
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Trampoline Inventor Saw Sport Enshrined in Olympics - WSJ
How the Trampoline Came to Be | Innovation| Smithsonian Magazine
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