TREA

Lennart E. Long

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  • Waltham, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rail car identification apparatus
    • Patent number 4,293,766
    • Issue date Oct 6, 1981
    • The United States of America as represented by the Secretary of Transportation
    • Lennart E. Long
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    Longitudinal rail profilometer
    • Patent number 4,288,926
    • Issue date Sep 15, 1981
    • The United States of America as represented by the Secretary of Transportation
    • Lennart E. Long
    • G01 - MEASURING TESTING