Horizon303
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A Japanese man who developed the world's smallest helicopter GEN H-4, a compact single-seater helicopter.
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Designer To Show Off His Mini-Helicopter, Japanese Inventor To Make Tribute Flight To Original Chopper Designer, Leonardo Da Vinci - CBS News
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Designer To Show Off His Mini-Helicopter, Japanese Inventor To Make Tribute Flight To Original Chopper Designer, Leonardo Da Vinci - CBS News
