Drilldown: Patents

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Patents > Year filed: 1860 - 1869 & Office : GB or MX or US & National tech categories : DE 77h or USPC 244/153R or USPC 244/30 or None & Cites these patents : 1 or 1912 or None

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Inventors:
Richard Boyman-Boyman (2) · William R. Manley (2) · Matthew Piers Watt Boulton (2) · André Crestadoro (2)
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Tech fields:
LTA (8) · marine (6) · propulsion (5) · kite (5) · propeller (4) · dirigible (4) · feathering (3) · balloon (3) · paddle-wheel (3) · navigation (3) · Paddle-wheels (2) · ornithopter (2) · human-powered (2) · None (2)
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