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Roger Martin

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  • St Cyr, FR
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Patents Grantslast 30 patents

  • Information Patent Grant

    Steel ball valve
    • Patent number 5,169,123
    • Issue date Dec 8, 1992
    • Vanatome, Societe Anonyme
    • Roger Martin
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Adjustment or regulation valve
    • Patent number 5,074,333
    • Issue date Dec 24, 1991
    • VANATOME Societe Anonyme
    • Roger Martin
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Rotary cock with generally spherical valve member
    • Patent number 4,575,045
    • Issue date Mar 11, 1986
    • Vanatome
    • Roger Martin
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...