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Patents > National tech categories : GB 4 propel & steer or USPC 74/6 & First filing: None

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Inventors:
Ernest Wilson (3) · James Grieve Lorrain (3) · Charles John Evans (2) · John MacHaffie (2) · Gustav Koch (2) · Patrick Young Alexander (2) · Hiram Stevens Maxim (2)
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propulsion (30) · propeller (18) · navigation (17) · LTA (15) · rudder (11) · frame (9) · subsystem (9) · electricity (8) · car (8) · heavier-than-air (8) · jet (7) · balloon (7) · marine (6) · ascension (6) · valve (6) · steam (5) · flapping (4) · wings (4) · electronics (4) · airplane (4)
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Showing below up to 56 results in range #1 to #56.

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