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GB731515A
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Improvements in the manufacture of non-cylindrical hollow rounded pre-stressed concrete elements such as aircraft elements
|
|
GB744107A
|
|
Improvements in or relating to aircraft
|
|
GB717877A
|
|
Improvements in apparatuses for making elements out of reinforced concrete
|
|
GB718462A
|
|
Improvements in aircraft structural elements and especially wings manufactured from reinforced concrete
|
|
US2787042A
|
|
Aircraft structural elements made out of reinforced concrete
|
|
US2776100A
|
|
Aircraft structural elements and especially wings from reinforced concrete
|
|
GB654089A
|
|
Improvements in adjusting and controlling means for the pitch of propellers, chieflyapplicable to helicopter rotors
|
|
GB641176A
|
|
Improvements in gear pumps
|
|
GB631000A
|
|
Improvements in or relating to control linkages
|
|
GB616222A
|
|
Improvements in or relating to power transmission means for coaxial gyroplane rotors
|
|
GB628263A
|
|
Improvements in or relating to axial flow compressors
|
|
GB626072A
|
|
Improvements in or relating to the mounting of super-charging compressors on aircraft engines
|
|
US2587104A
|
|
Apparatus of the gyroplane type
|
|
US2596363A
|
|
Power transmission means for coaxial gyroplane rotors
|
|
GB630135A
|
|
Improvements in or relating to variable pitch propellers
|
|
GB633695A
|
|
Rotary propeller
|
|
GB627847A
|
|
Improvements in or relating to apparatus for adjusting the pitch of aircraft propellers
|
|
GB434071A
|
|
An improved apparatus for electric resistance welding
|
|
GB423005A
|
|
Improvements in or relating to aircraft with rotating wing systems
|
|
GB373771A
|
|
Improvements in or relating to aircraft with rotating wing systems
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