Now showing items 1-10 of 5
inventions (5) |
invenţii (5) |
gear wheels (2) |
prototipuri (2) |
roţi dinţate (2) |
angrenaj planetar precesional (1) |
conversia energiei apei (1) |
external combustion engines (1) |
heat engines (1) |
matriţe (1) |
Now showing items 1-10 of 5