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| RITORNO | PRINCIPALE | ARCHIMEDE |
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| BRL-CAD | DOUBLECAD X | FREECAD |
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| LIBRE CAD | Q CAD | SKETCHUP-FREE |
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| HERMAN | HERMAN | HERMAN |
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| HERMAN | HERMAN | HERMAN |
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| HERMAN | HERMAN | HERMAN |
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| LINK | UTILITA' | INFORMAZIONI |