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Patents > Year granted: 1881

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None (15) · William Beeson (2) · Comte Antoine Apraxine (2) · Albert Livingstone Blackman (2)
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None (24) · LTA (18) · balloon (13) · navigation (8) · propulsion (7) · car (3) · airship (2) · ascension (2) · marine (2) · windmill (2) · landing (2) · propeller (2) · hybrid (2) · frame (2) · Flying machine (2) · ornithopter (2) · control (2) · compartments (2)
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