Alan Crawshay

Person

  • Trail, CA

Patents Grantslast 30 patents

  • Information Patent Grant

    Damper assembly for gas duct

    • Patent number 4,235,256
    • Issue date Nov 25, 1980
    • Cominco Ltd.
    • Alan Crawshay
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...