Richard T. Sewald SR.

Person

  • Bethlehem, PA, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Treatment of industrial wastewaters

    • Patent number 4,465,597
    • Issue date Aug 14, 1984
    • Bethlehem Steel Corp.
    • Stewart T. Herman
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents