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Patents > Assigned to: None & National tech categories: GB 4 propel & steer & Number of diagram pages: 1-2

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propulsion (11) · navigation (7) · LTA (7) · jet (4) · subsystem (4) · car (3) · rudder (3) · design (3) · electricity (3) · propeller (3) · flapping (3) · marine (3)
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