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Patents > National tech categories : GB 4 propel & steer or USPC 416/240

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Inventors:
James Grieve Lorrain (3) · Ernest Wilson (3) · John MacHaffie (2) · John Marshall (2) · Erhard Brunsmann (2) · Hiram Stevens Maxim (2) · Octave Chanute (2) · Gustav Koch (2) · Patrick Young Alexander (2) · Charles John Evans (2)
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Tech fields:
propulsion (40) · propeller (24) · navigation (23) · LTA (20) · rudder (14) · subsystem (14) · frame (12) · electricity (10) · heavier-than-air (10) · marine (10) · car (9) · flapping (8) · balloon (7) · steam (7) · jet (7)
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Showing below up to 80 results in range #1 to #80.

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