Drilldown: Patents

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Patents > Number of text pages: 2-3 & Number of claims: 12

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frame (5) · None (4) · safety (3) · parachute (3) · navigation (3) · LTA (3) · airplane (3) · balloon (2) · stability (2) · projectile (2) · propeller (2) · propellers (2) · propulsion (2) · airfoil (2) · design (2)
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