Now showing items 1-10 of 9
blades (9) |
wind turbines (5) |
hydrodynamic blades (2) |
inventions (2) |
invenţii (2) |
vertical axis wind turbines (2) |
water energy (2) |
brevete de invenție (1) |
composite materials (1) |
drag type blades (1) |
Now showing items 1-10 of 9