TREA

Wilhelm Zwergel

Follow

Person

  • Freigericht, DE
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Heater plug for diesel engines
    • Patent number 4,359,977
    • Issue date Nov 23, 1982
    • W. C. Heraeus GmbH
    • Franz Sperner
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Heater plug for diesel engines
    • Patent number 4,358,663
    • Issue date Nov 9, 1982
    • W. C. Heraeus GmbH
    • Franz Sperner
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS