John Fredrik Alf Hartmann

Person

  • Djursholm, SE

Patents Grantslast 30 patents

  • Information Patent Grant

    Vehicle deceleration sensing device

    • Patent number 4,108,005
    • Issue date Aug 22, 1978
    • Forenade Fabriksverken
    • Claes Gustav Erik Yngve Tisell
    • G01 - MEASURING TESTING