TREA

John B. Gilbert

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  • Portland, OR, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Solid ink stick supply system
    • Patent number 5,975,690
    • Issue date Nov 2, 1999
    • Tektronix, Inc.
    • H. Erwin Grellmann
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Solid ink stick supply apparatus and method
    • Patent number 5,917,528
    • Issue date Jun 29, 1999
    • Tektronix, Inc.
    • H. Erwin Grellmann
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS