Allan Akerstedt

Person

  • Ludvika, SE

Patents Grantslast 30 patents

  • Information Patent Grant

    Overvoltage protective circuit

    • Patent number 4,860,156
    • Issue date Aug 22, 1989
    • Asea Brown Boveri AB
    • Lennart Stenstrom
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER