TREA

Oscar E. Manz

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  • Grand Forks, ND, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method and means for producing mineral wool
    • Patent number 4,971,615
    • Issue date Nov 20, 1990
    • UND-SEM Foundation
    • Oscar E. Manz
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Thermal storage brick
    • Patent number 4,906,598
    • Issue date Mar 6, 1990
    • Oscar E. Manz
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES