TREA

Joseph P. Elm

Follow

Person

  • Allegheny County, PA, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Cab signaling apparatus and method
    • Patent number 5,711,497
    • Issue date Jan 27, 1998
    • Union Switch & Signal Inc.
    • Nikos Andrianos
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Railway car retarder system
    • Patent number 5,676,337
    • Issue date Oct 14, 1997
    • Union Switch & Signal Inc.
    • Theo C. Giras
    • B61 - RAILWAYS