Hollis Ellsworth Hoog

Person

  • Spokane, WA, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Liquid leak detector

    • Patent number 6,122,955
    • Issue date Sep 26, 2000
    • Hollis Ellsworth Hoog
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES