Roger Duffield

Person

  • Hampshire, GB

Patents Grantslast 30 patents

  • Information Patent Grant

    Fuel filter and production process

    • Patent number 6,458,279
    • Issue date Oct 1, 2002
    • Klinair Environmental Technologies (Ireland) Limited
    • Roger Duffield
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS