TREA

Paul A. Hirst

Follow

Person

  • Riverside, CA, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Step opening gas valve
    • Patent number 4,009,861
    • Issue date Mar 1, 1977
    • Essex International, Inc.
    • Paul A. Hirst
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES