Drilldown: Patents

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Patents > Office: DK & First filing : No or Yes

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Airplane (11) · stability (10) · Design (7) · Wings (6) · propulsion (6) · construction (6) · frame (5) · Propellers (4) · wood (3) · Lift (3) · LTA (3) · whole (3) · balloon (2) · Flapping (2) · automatic stability (2) · propeller (2) · navigation (2) · HTA (2)
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Showing below up to 29 results in range #1 to #29.

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