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Patents > Office : BE or CA or CU or DK or RU & Related to aircraft : .5 or DE 369478 or Yes & First filing: Yes

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airplane (16) · design (12) · propulsion (7) · LTA (6) · wings (5) · helicopter (5) · frame (5) · landing (5) · stability (4) · Propellers (4) · takeoff (3) · navigation (3) · Aerodynamics (3) · propeller (3) · balloon (3) · rudder (3) · control (3) · construction (3)
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Showing below up to 32 results in range #1 to #32.

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