Johan M. R. Danneels

Person

  • Rupelmonde, BE

Patents Grantslast 30 patents

  • Information Patent Grant

    Telephone line circuit and system

    • Patent number 4,456,991
    • Issue date Jun 26, 1984
    • International Telephone & Telegraph Corporation
    • Ramon C. W. Chea
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE