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Patents > National tech categories : GB 4 propel & steer or USPC 244/19

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Inventors:
James Grieve Lorrain (3) · Ernest Wilson (3) · Charles John Evans (2) · Erhard Brunsmann (2) · John MacHaffie (2) · Hiram Stevens Maxim (2) · John Marshall (2) · Patrick Young Alexander (2) · Octave Chanute (2)
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Tech fields:
propulsion (38) · propeller (24) · navigation (23) · LTA (19) · subsystem (12) · rudder (12) · frame (11) · marine (10) · electricity (10) · heavier-than-air (9) · car (9) · airplane (8) · flapping (8) · jet (7) · steam (7) · balloon (7) · valve (6) · ascension (6) · stability (6)
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Showing below up to 75 results in range #1 to #75.

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