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Patents > Related to aircraft: 1 & National tech categories : GB 4 propel & steer or USPC 244/97

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Inventors:
Patrick Young Alexander (2)
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Tech fields:
propulsion (30) · LTA (23) · navigation (17) · propeller (16) · frame (12) · rudder (12) · balloon (10) · car (9) · heavier-than-air (8) · marine (7) · ascension (6) · jet (5) · electricity (5) · steam (5) · subsystem (5) · valve (5) · flapping (5) · gas (4) · wings (4) · airplane (4)
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Showing below up to 58 results in range #1 to #58.

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