TREA

Michael P. Krajewski

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  • Yankton, SD, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rail car cover system
    • Patent number 7,967,363
    • Issue date Jun 28, 2011
    • Shorma Company
    • David J. Schaefer
    • B61 - RAILWAYS
  • Information Patent Grant

    Rail car cover system
    • Patent number 7,823,515
    • Issue date Nov 2, 2010
    • Shur Company
    • David J. Schaefer
    • B61 - RAILWAYS

Patents Applicationslast 30 patents

  • Information Patent Application

    RAIL CAR COVER SYSTEM
    • Publication number 20110030575
    • Publication date Feb 10, 2011
    • Shur Company
    • David J. Schaefer
    • B61 - RAILWAYS
  • Information Patent Application

    RAIL CAR COVER SYSTEM
    • Publication number 20100037798
    • Publication date Feb 18, 2010
    • Shur Company
    • David J. Schaefer
    • B61 - RAILWAYS