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Patents > Year granted: 1881

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None (15) · William BEESON (2) · Ernst Georg August Baumgarten (2) · Comte Antoine Apraxine (2) · Albert Livingstone BLACKMAN (2)
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None (23) · LTA (19) · balloon (13) · propulsion (8) · navigation (8) · frame (3) · car (3) · Flying machine (2) · marine (2) · Windmill (2) · landing (2) · propeller (2) · hybrid (2) · airship (2) · ascension (2) · ornithopter (2) · control (2) · compartments (2)
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