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Ubaldoo Colombo

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  • Busto Arsizio, IT
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Patents Grantslast 30 patents

  • Information Patent Grant

    Screw extruder with improved mixing pins
    • Patent number 6,814,481
    • Issue date Nov 9, 2004
    • Colmec S.p.A.
    • Ubaldoo Colombo
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL