Ewald Hartmann

Person

  • Cologne, DE

Patents Grantslast 30 patents

  • Information Patent Grant

    Wear resistant wheel for endless track

    • Patent number 4,349,234
    • Issue date Sep 14, 1982
    • Clouth Gummiwerke Aktiengesellschaft
    • Ewald Hartmann
    • B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS