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Dennis J. O'Brien

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  • Litchfield, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Oil burner and method
    • Patent number 5,184,949
    • Issue date Feb 9, 1993
    • R.W. Beckett Corporation
    • Dennis J. O'Brien
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES