Drilldown: Patents

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Patents > Office : DE or ES or GR & Inventor country: FR & National tech categories: None & IPCs : IPC B64C11/00 or IPC B64C25/00 or None

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airplane (10) · LTA (9) · propulsion (6) · propellers (6) · frame (6) · subsystem (5) · Design (5) · stability (4) · balloon (4) · Construction (3) · gas (3) · None (3) · chassis (3) · Aerodynamics (3)
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Showing below up to 45 results in range #1 to #45.

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