Durk Van Willigen

Person

  • Reeuwijk, NL

Patents Grantslast 30 patents

  • Information Patent Grant

    Active aerial

    • Patent number 4,414,690
    • Issue date Nov 8, 1983
    • U.S. Philips Corporation
    • Ernst H. Nordholt
    • H03 - BASIC ELECTRONIC CIRCUITRY