Now showing items 1-10 of 8
invenţii (7) |
inventions (5) |
brevete de invenţie (2) |
gear-wheels (2) |
gears (2) |
precessional transmissions (2) |
teeth (2) |
angrenaje precesionale (1) |
bevel gears (1) |
concave-concave contacts (1) |
Now showing items 1-10 of 8