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Trampoline invention
Questions (2)
In 1930, George Nissen was attending a circus when an idea began bouncing around in his head. Watching the performers fall from
1 answer
asked anonymously
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In 1930, George Nissen was attending a circus when an idea began bouncing around in his head. Watching the performers fall from
1 answer
asked anonymously
31 views
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Inventions
Inventions and Discoveries
