TREA

John R. Sigle

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  • Pawnee, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Railway tie collar system
    • Patent number 5,402,942
    • Issue date Apr 4, 1995
    • Tie Collar, Ltd.
    • Rudolph F. Wiatr
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Railway tie collar
    • Patent number 4,121,766
    • Issue date Oct 24, 1978
    • Rudolph F. Wiatr
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES