Drilldown: Patents

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Patents > Office: GB & Grant date: 1890 - 1899 & Number of claims: 4-6

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propulsion (8) · LTA (6) · frame (5) · navigation (4) · heavier-than-air (3) · flapping (3) · hybrid (3) · rigid (3) · balloon (3) · airplane (2) · compartments (2) · landing (2) · human-powered (2) · propeller (2) · gas (2) · jet (2)
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