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Patents > Patent agent: None & National tech categories : FR 10.4 or GB 4 propel & steer

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James Grieve Lorrain (3) · Ernest Wilson (3) · René-Gabriel Joly (2) · Charles John Evans (2) · John MacHaffie (2) · Patrick Young Alexander (2)
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propulsion (18) · propeller (10) · subsystem (9) · electricity (8) · navigation (8) · LTA (7) · marine (7) · heavier-than-air (6) · car (6) · airplane (5) · frame (5) · rudder (5)
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Showing below up to 42 results in range #1 to #42.

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