John T. Appelen

Person

  • Mound, MN, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Track skeletonizer

    • Patent number 4,379,371
    • Issue date Apr 12, 1983
    • Railway Track-Work Company
    • Allan D. Jenkins
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES