Drilldown: Patents

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Patents > Year filed: 1880 - 1889 & Office : DE or US or Other & Tech fields : balloon or wings

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Inventors:
Comte Antoine Apraxine (7) · Albert Livingstone Blackman (3) · Eugene F. Falconnet (3) · Jules Cezar Ribeiro de Souza (2) · William Beeson (2) · Gustav Koch (2)
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