TREA

Willis D. Smith

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  • Phoenix, AZ, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Extrusion preparation apparatus
    • Patent number 3,956,952
    • Issue date May 18, 1976
    • Robert J. Goettel
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Extrusion preparation apparatus
    • Patent number 3,938,413
    • Issue date Feb 17, 1976
    • Robert J. Goettel
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...