Drilldown: Patents

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Patents > Year granted: 1890 - 1899 & Number of text pages: 1-2 & Number of figures: 6-10

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Inventors:
William Cowell Sly (2) · Carl Friedrich Billwiller (2) · Perham Wilhelm Nahl (2) · Theodor Schneider-Preiswerk (2)
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Tech fields:
LTA (16) · propulsion (10) · frame (8) · propeller (5) · navigation (4) · parachute (4) · flapping (4) · kite (3) · design (3) · projectile (3) · glider (3) · military (3) · car (3) · balloon (3)
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