GB942294A
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Aircraft landing gear
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GB891749A
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Tail plane for helicopters
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DE1235659B
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Speed control device for an internal combustion engine for a helicopter
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Helicopter torque control device
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Propeller blade
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Horizontal tail plane for helicopters
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Supplemental flight controls for aircraft
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Airfoil boundary layer control means
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Driver's seat
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Helicopter governor
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Amphibious aircraft
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DE1203613B
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Light helicopter
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GB871050A
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Improvements in or relating to rotary wing aircraft
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Collapsible and portable rotary wing aircraft
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Storage, mixing and dispensing device
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Fuel supply control for rotary wing aircraft
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Jet driven rotor
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Vibration absorbing system and method for rotary wing aircraft blades
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Vertical take-off high-speed aircraft
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CA677732A
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Helicopter power requirement anticipator and throttle governor damper
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