David Holligan

Person

  • Santa Rosa, CA, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Brittle lined pipe connector

    • Patent number 5,240,293
    • Issue date Aug 31, 1993
    • Union Oil Company of California
    • William C. Allen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...