David Dubis

Person

  • Morgantown, WV, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Energy efficient continuous flow ash lockhoper

    • Patent number 4,860,669
    • Issue date Aug 29, 1989
    • The United States of America as represented by the administrator of the Natio...
    • Earl R. Collins
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES