David L. Bitzer

Person

  • Urbana, IL, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Computer-based education system

    • Patent number 4,793,813
    • Issue date Dec 27, 1988
    • The Board of Trustees of the University of Illinois
    • David L. Bitzer
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS