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brevete de invenţie (8) |
blades (7) |
energie eoliană (7) |
energie solară (7) |
turbine eoliene (7) |
wave energy (7) |
IPC: F03B 13/18 (2006.01) (6) |
roţi dinţate (6) |
solar energy (6) |
toothed wheels (6) |
Now showing items 11-20 of 190