Drilldown: Patents

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Patents > Patent agent: None & IPCs : IPC B64C11/22 or IPC B64C23/00

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None (9) · airplane (9) · propulsion (7) · design (5) · LTA (5) · wings (5) · propellers (4) · construction (4) · Frame (3) · ascension (3) · helicopter (3)
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Showing below up to 34 results in range #1 to #34.

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