Drilldown: Patents

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Patents > Office : HU or IN or IT & Inventor country : CN or HU & Application number : frame or None & IPCs : IPC B64C3/38 or None

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Tech fields:
airplane (19) · stability (6) · propellers (6) · design (6) · automatic stability (5) · construction (4) · frame (4) · wings (4) · equilibrium (3) · propulsion (3)
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Showing below up to 36 results in range #1 to #36.

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