TREA

David Engnell

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  • Issaquah, WA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Engine boring and surfacing machine
    • Patent number 4,792,265
    • Issue date Dec 20, 1988
    • Rottler Manufacturing Company
    • Donald B. Rottler
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    System and apparatus for reboring main bearings
    • Patent number 4,789,279
    • Issue date Dec 6, 1988
    • Donald B. Rottler
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Short-stroking honing machine
    • Patent number 4,550,530
    • Issue date Nov 5, 1985
    • Rottler Manufacturing Co.
    • Donald Rottler
    • B24 - GRINDING POLISHING
  • Information Patent Grant

    Sled for fixturing engine blocks
    • Patent number 4,541,620
    • Issue date Sep 17, 1985
    • Rottler Manufacturing, Inc.
    • Donald B. Rottler
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Honing machine
    • Patent number 4,189,871
    • Issue date Feb 26, 1980
    • Rottler Boring Bar Co.
    • Donald B. Rottler
    • B24 - GRINDING POLISHING