Drilldown: Patents

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Patents > National tech categories : FR 6.2 or USPC 244/30 & IPCs : IPC B64B1/00 or IPC B64C25/00 or IPC B64C39/00

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None (5)
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LTA (39) · Propulsion (16) · navigation (12) · balloon (11) · car (10) · propeller (9) · frame (8) · safety (6) · marine (6) · airplane (4) · rudder (4) · landing (4) · Hybrid (3) · compartments (3) · airfoil (3) · Propellers (3)
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Showing below up to 46 results in range #1 to #46.

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