TREA

David A. Prado

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  • Chicago, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Solar collector system
    • Patent number 6,244,062
    • Issue date Jun 12, 2001
    • David Prado
    • F24 - HEATING RANGES VENTILATING
  • Information Patent Grant

    Solar collector
    • Patent number 4,149,525
    • Issue date Apr 17, 1979
    • David A. Prado
    • F24 - HEATING RANGES VENTILATING