TREA

Derek J. Smith

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  • Curdworth, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Differential lock engaging arrangement
    • Patent number 6,390,226
    • Issue date May 21, 2002
    • ARGO Limited
    • Derek John Smith
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Differential lock and four wheel drive control arrangement
    • Patent number 6,357,315
    • Issue date Mar 19, 2002
    • AGCO Limited
    • Derek John Smith
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Vehicle cab with roof hatch
    • Patent number 5,613,728
    • Issue date Mar 25, 1997
    • Massey Ferguson Manufacturing Limited
    • Derek J. Smith
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Hydraulic unloading valves
    • Patent number 4,766,926
    • Issue date Aug 30, 1988
    • Massey-Ferguson Services N.V.
    • Derek J. Smith
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Lever mechanism
    • Patent number 4,478,104
    • Issue date Oct 23, 1984
    • Massey-Ferguson Services N.V.
    • Ronald C. Page
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Control lever arrangements
    • Patent number 4,445,394
    • Issue date May 1, 1984
    • Massey-Ferguson Services N.V.
    • Robert E. Yapp
    • G05 - CONTROLLING REGULATING