TREA

Arie W. Spoormaker

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  • Maassluis, NL
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of operating a wall fired duct heater
    • Patent number 4,462,795
    • Issue date Jul 31, 1984
    • Coen Company, Inc.
    • Ralph R. Vosper
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    Wall fired duct heater
    • Patent number 4,375,952
    • Issue date Mar 8, 1983
    • Coen Company, Inc.
    • Ralph R. Vosper
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    Wall fired duct heater
    • Patent number 4,286,945
    • Issue date Sep 1, 1981
    • Coen Company, Inc.
    • Ralph R. Vosper
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES