William E. Armstrong

Person

  • Corbett, OR, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Hydraulic brake release system

    • Patent number 4,989,703
    • Issue date Feb 5, 1991
    • Atlas Copco Construction and Mining Holding AB
    • Allen P. Forsyth
    • B60 - VEHICLES IN GENERAL