Drilldown: Patents

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Patents > National tech categories : USPC 244/30 or USPC 244/89 & Number of figures: 3-20

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LTA (31) · navigation (16) · propulsion (13) · balloon (10) · car (10) · frame (10) · rudder (8) · propeller (7) · airplane (6) · parachute (5) · safety (5) · stability (5) · airfoil (4) · compartments (4) · marine (3) · hybrid (3) · None (2) · dirigible (2) · passenger (2)
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Showing below up to 43 results in range #1 to #43.

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