Drilldown: Patents

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Patents > National tech categories : FR 5 or FR 6.3 & Number of claims: 3-30

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propulsion (16) · LTA (15) · navigation (12) · propellers (6) · wings (5) · construction (5) · Airship (5) · dirigible (5) · safety (4) · stability (4) · landing (4) · lift (4) · parachute (4) · ascension (4) · balloon (4) · propeller (3) · hybrid (3) · airplane (3)
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Showing below up to 36 results in range #1 to #36.

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