Brian Helweg-Larsen

Person

  • Little Missenden, Amersham, GB

Patents Grantslast 30 patents

  • Information Patent Grant

    Business education model

    • Patent number 5,056,792
    • Issue date Oct 15, 1991
    • Brian Helweg-Larsen
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS