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brevete de invenție (2) |
energie eoliană (2) |
invenții (2) |
IPC: F03D 1/00 (2006.01) (2) |
turbine eoliene (2) |
wind energy (2) |
wind turbines (2) |
IPC: F03D 7/04 (2006.01) (1) |
turbine eoliene cu ax orizontal (1) |
wind turbines with horizontal axis (1) |
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