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Trampoline
George Nissen, a 16-year-old gymnast, came up with the idea for the trampoline in 1930. He wasn’t able to develop a prototype though until 1934, which he patented three years later.
George Nissen, a 16-year-old gymnast, came up with the idea for the trampoline in 1930. He wasn’t able to develop a prototype though until 1934, which he patented three years later.
