Drilldown: Patents

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Patents > National tech categories : USPC 244/22 or USPC 244/30 & Number of claims: 2-4

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LTA (18) · frame (14) · propulsion (12) · flapping (11) · navigation (11) · propeller (9) · parachute (7) · balloon (6) · ornithopter (5) · rudder (5) · safety (5) · airplane (4) · stability (3) · airfoil (3)
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Showing below up to 35 results in range #1 to #35.

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