TREA

Charles V. Frederick

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  • New Virginia, IA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Heat exchanger
    • Patent number 4,423,771
    • Issue date Jan 3, 1984
    • Charles V. Frederick
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    Method and means for burning corncobs and corn
    • Patent number 4,203,374
    • Issue date May 20, 1980
    • Charles V. Frederick
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES