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brevete de invenţie (1) |
dinţi (1) |
invenţii (1) |
IPC: B21D 43/00 (2006.01) (1) |
IPC: B30B 15/30 (2006.01) (1) |
knurling teeth (1) |
moletarea dinţilor (1) |
piese (1) |
plastic deformations (1) |
roţi conice (1) |
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