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Patents > National tech categories : IT 8 or None & CPCs: CPC B64C13/00 & Number of figures: 3-4

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control (16) · steering (10) · Airplane (9) · None (6) · rudder (5) · stability (4) · wings (4) · marine (3) · frame (3) · wing warping (3) · navigation (3) · subsystem (2) · propellers (2) · lift (2) · balance (2)
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Showing below up to 37 results in range #1 to #37.

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