Stephen L. DenHartog

Person

  • Hanover, NH, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Thermosyphon condensate return device

    • Patent number 4,961,463
    • Issue date Oct 9, 1990
    • The United States of America as represented by the Secretary of the Army
    • Stephen L. DenHartog
    • F24 - HEATING RANGES VENTILATING