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Patents > Filing date: 1900 - 1909 & IPCs: IPC B64C39/00 & CPCs : CPC B64B1/58 or CPC B64C39/005 or CPC B64C39/06

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propulsion (12) · navigation (8) · Airplane (5) · design (5) · None (4) · stability (4) · safety (4) · construction (3) · landing (3) · parachute (3) · Frame (3) · LTA (3) · Ascension (3) · airship (3) · Sustentation (3) · orthopter (2) · flying machine (2) · heavier-than-air (2)
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Showing below up to 36 results in range #1 to #36.

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