TREA

David W. Oplt

Follow

Person

  • Belleville, IL, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Reflective paving marker
    • Patent number 4,428,320
    • Issue date Jan 31, 1984
    • Lukens General Industries, Inc.
    • David W. Oplt
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES