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energie eoliană (4) |
invenţii (4) |
turbine eoliene cu ax vertical (4) |
inventions (3) |
wind energy conversion (2) |
wind turbines with vertical axis (2) |
brevete de invenţie (1) |
conversiunea energiei eoliene (1) |
IPC: F03D 3/02 (2006.01) (1) |
vertical axis wind turbines (1) |
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