Windmills, wind power plants, wind turbines and other wind-powered machines in the nature of wind-powered electricity generators; parts and accessories for the aforementioned goods, namely, mill towers and masts, blades, blade hubs, mill housings, machine beds, rotation devices, yaw rings and gears, devices specially adapted for wind turbines and windmills for setting the pitch of the wings, brakes and brake devices, main shafts, universal joints, transmission devices, clutches and electric g...

Rotary heat exchangers not being parts of machines