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Herbert C. Preul

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  • Cincinnati, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Wastewater source control system
    • Patent number 6,997,201
    • Issue date Feb 14, 2006
    • Herbert C. Preul
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

  • Information Patent Application

    Wastewater control system
    • Publication number 20050072465
    • Publication date Apr 7, 2005
    • Herbert C. Preul
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Application

    Wastewater source control system
    • Publication number 20050072469
    • Publication date Apr 7, 2005
    • Herbert C. Preul
    • E03 - WATER SUPPLY SEWERAGE