Drilldown: Patents

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Patents > Grant date: 1910 - 1919 & Granted: Yes & IPCs : IPC B64B1/62 or IPC B64C31/06

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LTA (30) · kite (11) · gas (10) · Lift (5) · balloon (5) · propulsion (5) · propellers (5) · navigation (5) · kites (4) · balloons (4) · stability (4) · frame (4) · construction (4) · Design (3) · Dirigibles (3) · Airship (3) · hybrid (3) · ballonet (3)
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