TREA

Pipemakers, Inc.

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Organization

  • Calgary, CA
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Mobile pipe mill
    • Patent number 4,651,914
    • Issue date Mar 24, 1987
    • Pipemakers, Inc.
    • Douglas L. Sprung
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Mobile pipe mill
    • Patent number 4,651,915
    • Issue date Mar 24, 1987
    • Pipemakers, Inc.
    • Douglas L. Sprung
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Line travel normalizer
    • Patent number 4,632,366
    • Issue date Dec 30, 1986
    • Pipemakers, Inc.
    • Douglas L. Sprung
    • C21 - METALLURGY OF IRON