Drilldown: Patents

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Patents > National tech categories : CH 129b or USPC 244/61 & First filing: None

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Airplane (22) · whole (10) · stability (9) · frame (8) · Design (8) · propeller (7) · automatic stability (5) · Tragfläche (5) · wings (4) · propulsion (4) · navigation (4) · heavier-than-air (4) · ornithopter (3) · Lift (3) · airfoil (3) · landing (3) · flapping (3)
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Showing below up to 33 results in range #1 to #33.

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