Drilldown: Patents

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Patents > Year filed: 1908 & CPCs : CPC B64C39/00 or None & Number of claims: 1

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propulsion (10) · LTA (9) · Airplane (8) · None (5) · Subsystem (5) · propeller (5) · frame (4) · stability (4) · safety (4) · Rudder (4) · Propellers (3) · Navigation (3) · hybrid (3) · landing (3) · wings (3) · Control (3) · design (3)
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