Windspinner Faraday Principle electricity generator
Windtrap energy system
Windtrap for power development
Wing energy catchment device
Wing energy catchment device
Wire rewinding box with recharge unit
Wireless mouse with power generating function
Working machine
X-ray intensifying screens with an improved speed/image quality
Yaw bearing cleaning assembly for wind turbine
Yawing system for adjusting a wind turbine into a required wind