F - Mech Eng,Light,Heat,Weapons – 01 – D
Inventor
F - Mech Eng,Light,Heat,Weapons
01
D
Inventor
Country: France
Contra-rotating propeller system with device for feathering...
Device for controlling the orientation of the blades of a...
Device for driving a pair of counter-rotating propellers by...
Device for measuring the torsion of rotating shaft
Device with counter-rotating propellers having a means for...
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