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Lutfi Amra

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  • Cleveland Heights, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Molten metal pump with filter
    • Patent number 5,286,163
    • Issue date Feb 15, 1994
    • The Carborundum Company
    • Lutfi Amra
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Molten metal pump with filter
    • Patent number 5,078,572
    • Issue date Jan 7, 1992
    • The Carborundum Company
    • Lutfi Amra
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Molten metal pump with filter
    • Patent number 4,940,384
    • Issue date Jul 10, 1990
    • The Carborundum Company
    • Lutfi H. Amra
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Corrosion and wear resistant graphite material and method of manufa...
    • Patent number 4,621,017
    • Issue date Nov 4, 1986
    • Kennecott Corporation
    • Richard C. Chandler
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Corrosion and wear resistant graphite material
    • Patent number 4,617,232
    • Issue date Oct 14, 1986
    • Kennecott Corporation
    • Richard C. Chandler
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES