David T. Hearst

Person

  • Chardon, OH, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Identification device for a container

    • Patent number 4,827,643
    • Issue date May 9, 1989
    • AGA Gas Central, Inc.
    • David T. Hearst
    • F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS