David G. Powell

Person

  • Monrovia, CA, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Hydraulic safety mechanism

    • Patent number 4,204,513
    • Issue date May 27, 1980
    • California Controls Company
    • Robert A. Bilbrey
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS