Drilldown: Patents

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Patents > National tech categories : AT 77d or GB 4 propel & steer & Number of figures: 7-9

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airplane (13) · frame (8) · wings (7) · propulsion (6) · Stability (5) · subsystem (4) · Flapping (4) · design (4) · heavier-than-air (4) · wheels (3) · whole (3) · automatic stability (3) · construction (3)
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Showing below up to 27 results in range #1 to #27.

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