Drilldown: Patents

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Patents > Year granted: 1913 & Grant date: 1900 - 1999 & CPCs : CPC B64B1/40 or CPC B64C11/006

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Propulsion (6) · None (5) · propellers (4) · Subsystem (3) · nacelle (3) · LTA (3) · suspension (3) · frame (2) · aerial propellers (2) · aerodynamics (2) · design (2) · airship (2) · Propeller (2)
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