Drilldown: Patents

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Patents > Grant date: 1900 - 1999 & Patent agent: Victor J. Evans & Number of diagram pages: 2-3

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George Lehberger (3)
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George Lehberger (3)
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None (12) · airplane (11) · frame (10) · stability (8) · navigation (7) · propeller (7) · rudder (5) · safety (4) · propulsion (4) · airfoil (3) · wheels (2) · parachute (2) · hybrid (2) · helicopter (2) · gyroscope (2) · fuselage (2) · automatic stability (2) · control (2) · takeoff (2)
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