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Patents > Inventor country: RU & Number of claims: 2-4

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airplane (16) · stability (14) · propulsion (11) · Aerodynamics (11) · automatic stability (11) · frame (11) · wings (10) · LTA (9) · marine (6) · hydrodynamics (6) · energy (6) · design (5) · elasticity (5) · takeoff (4) · launching (4) · None (4) · balloon (4) · control (4)
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Showing below up to 56 results in range #1 to #56.

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