TREA

Ronald G. Butler

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  • Mundelein, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Light weight draft sill
    • Patent number 6,305,298
    • Issue date Oct 23, 2001
    • AMSTED Industries Incorporated
    • Horst T. Kaufhold
    • B61 - RAILWAYS
  • Information Patent Grant

    Light weight draft sill
    • Patent number 5,931,101
    • Issue date Aug 3, 1999
    • AMSTED Industries Incorporated
    • Horst T. Kaufhold
    • B61 - RAILWAYS
  • Information Patent Grant

    Slackless railway coupler with draft/buff gear
    • Patent number 5,312,007
    • Issue date May 17, 1994
    • AMSTED Industries Incorporated
    • Horst T. Kaufhold
    • B61 - RAILWAYS