TREA

Kalevi John Kenton

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  • London, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Oil re-refining method and apparatus
    • Patent number RE38366
    • Issue date Dec 30, 2003
    • Avista Resources, Inc.
    • Kalevi John Kenton
    • 208 - Mineral oils: processes and products