TREA

Sem G. Zachar

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  • Washington, NJ, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sewage treatment system
    • Patent number 4,021,347
    • Issue date May 3, 1977
    • Ray E. Teller
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE