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QUIET VERTICAL TAKEOFF AND LANDING AIRCRAFT USING DUCTED, MAGNETIC INDUCTION AIR-IMPELLER ROTORS

  • US 20060049304A1
  • Filed: 01/22/2004
  • Published: 03/09/2006
  • Est. Priority Date: 01/07/2002
  • Status: Active Grant
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1-3. -3. (canceled)

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