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Patents > National tech categories : CH 129b or USPC 244/45R & First filing: None

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airplane (23) · whole (10) · stability (10) · frame (9) · design (8) · propeller (6) · automatic stability (5) · Tragfläche (5) · wings (4) · navigation (4) · airfoil (4) · heavier-than-air (3) · propulsion (3) · ornithopter (3) · Lift (3) · landing (3) · flapping (3)
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Showing below up to 31 results in range #1 to #31.

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