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Patents > National tech categories: AU 90.3

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Tech fields:
airplane (21) · frame (19) · whole (12) · propulsion (9) · stability (9) · heavier-than-air (6) · propeller (6) · safety (5) · piloting (5) · design (5) · marine (5) · helicopter (5) · airfoil (4) · landing (4) · hybrid (4) · navigation (3) · aerodynamics (3) · wings (3)
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Showing below up to 34 results in range #1 to #34.

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