Drilldown: Patents

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Patents > Year filed: 1890 - 1899 & Assigned to: None & Number of diagram pages: 3-50000000

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Inventors:
Sumter Beauregard Battey (2) · Burr Frank Barnes (2) · John Marshall (2) · Louis-Étienne Roze (2)
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Tech fields:
propulsion (27) · LTA (21) · navigation (18) · Frame (14) · propeller (10) · rudder (10) · flapping (9) · balloon (9) · car (7) · stability (5) · parachute (5) · Takeoff (4) · airplane (4) · cargo (4) · airfoil (4)
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National tech categories:
None (10) · GB 4 without buoyant (6) · GB 4 propel & steer (6) · USPC 244/30 (4) · GB 4 framework (4) · GB 4 aëroplanes (3) · GB 4 motors (3) · USPC 244/28 (2) · GB 4 starting (2)
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