Drilldown: Patents

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Patents > Inventor country : FR or GB or RO & Grant date: 1906 & National tech categories : DE 77h.6 or FR 6.4 or GB 4 propel & steer or GB 4 without buoyant & Cites these patents: None

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Propulsion (12) · Airplane (11) · lift (6) · stability (5) · LTA (4) · navigation (4) · helicopter (4) · ascension (3) · frame (3) · propeller (2) · heavier-than-air (2) · equilibrium (2) · hybrid (2) · construction (2) · texture (2) · Dirigible (2)
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Showing below up to 35 results in range #1 to #35.

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