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Patents > Inventor country: US & National tech categories : IT 8 or USPC 244/104R

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None (11) · airplane (7) · rudder (5) · frame (4) · flapping (3) · wheels (3) · takeoff (3) · propulsion (3) · navigation (3) · LTA (3) · landing (3) · wings (3) · balloon (3) · airfoil (3) · camber (2) · safety (2) · stability (2) · helicopter (2) · propeller (2) · design (2)
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Showing below up to 31 results in range #1 to #31.

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