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GB580521A
|
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Improved variable lifting surface for aircraft
|
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US2241196A
|
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Variable surface airfoil
|
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DE651970C
|
|
Large-capacity aircraft with variable wings that can be rolled up along the fixed wings
|
|
GB454193A
|
|
Improvements in aircraft
|
|
US2136128A
|
|
Airplane having a variable lifting surface
|
|
GB444448A
|
|
Improvements in cowlings for air cooled aircraft engines
|
|
GB455023A
|
|
Improved aeroplane having a variable lifting surface
|
|
US2049006A
|
|
Airplane having variable lifting surfaces
|
|
US2072299A
|
|
Airplane having a variable lifting surface
|
|
GB452116A
|
|
Improvements in aeroplanes having a variable lifting surface
|
|
GB399048A
|
|
Improvements in or relating to aeroplanes having surfaces variable during flight
|
|
US1979194A
|
|
Airplane having a variable lifting surface
|
|
US1858924A
|
|
Wing surface with automatically variable ourvature
|
|
GB336761A
|
|
Improvements in the construction of airplanes
|
|
GB302277A
|
|
Improvements in airplanes having a variable lifting surface
|
|
US1787517A
|
|
Airplane having a variable lifting surface
|
|
US1724275A
|
|
Rotary valve for explosion engines
|
|
GB267936A
|
|
Improvements in or relating to driving devices for motor vehicles
|
|
US1702865A
|
|
Motor-propelling unit for motor vehicles
|
|
GB251263A
|
|
Improvements in or relating to motor-vehicle bodies
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