TREA

A/S Ardal og Sunndal Verk

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  • Oslo, NO
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Patents Grantslast 30 patents

  • Information Patent Grant

    Dynamic vacuum treatment
    • Patent number 4,049,248
    • Issue date Sep 20, 1977
    • A/S Ardal og Sunndal Verk
    • Ole Georg Gjosteen
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Electric hotplate with thermostat
    • Patent number 4,045,654
    • Issue date Aug 30, 1977
    • A/S Ardal og Sunndal Verk
    • Svein Eide
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Crust-breaking machine
    • Patent number 4,019,973
    • Issue date Apr 26, 1977
    • A/S Ardal og Sunndal Verk
    • Rolf Natvik
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Grant

    Tapping carriage
    • Patent number 3,994,481
    • Issue date Nov 30, 1976
    • A/S Ardal og Sunndal Verk
    • Hermann Torvund
    • F27 - FURNACES KILNS OVENS RETORTS
  • Information Patent Grant

    Vibratory device
    • Patent number 3,932,100
    • Issue date Jan 13, 1976
    • A/S Ardal og Sunndal Verk
    • Rolf Blindheim
    • B28 - WORKING CEMENT, CLAY, OR STONE

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