TREA

Paul T. Fennema

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  • Salem, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Gunning apparatus
    • Patent number 4,779,798
    • Issue date Oct 25, 1988
    • National Refractories & Minerals Corporation
    • Romeo Natolino
    • F27 - FURNACES KILNS OVENS RETORTS
  • Information Patent Grant

    Taphole assembly and method of installation
    • Patent number 4,328,956
    • Issue date May 11, 1982
    • Kaiser Aluminum & Chemical Corporation
    • Samuel J. LaLama
    • C21 - METALLURGY OF IRON