TREA

L. Lorang

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  • Differdange, LU
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Patents Grantslast 30 patents

  • Information Patent Grant

    Refractory piece permeable to gases
    • Patent number RE32192
    • Issue date Jun 24, 1986
    • Institut de Recherches de la Siderurgie Francaise
    • Pierre Vayssiere
    • 266 - Metallurgical apparatus
  • Information Patent Grant

    Refractory piece permeable to gases
    • Patent number 4,340,208
    • Issue date Jul 20, 1982
    • Institut de Recherches de la Siderurgie Francaise
    • Pierre Vayssiere
    • B22 - CASTING POWDER METALLURGY