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Patents > Grant date: July 1909 & IPCs : IPC B64C33/00 or None

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airplane (9) · hybrid (6) · None (5) · LTA (5) · Navigation (5) · propulsion (4) · design (4) · Airship (4) · frame (3) · Subsystem (3) · control (3) · stability (3)
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Showing below up to 29 results in range #1 to #29.

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