TREA

David Francis Fritz

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  • Raleigh, NC, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Variable power thermal printer
    • Patent number 6,503,006
    • Issue date Jan 7, 2003
    • International Business Machines Corporation
    • Sharon Corinne Freedman
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Variable power thermal printer
    • Patent number 6,234,695
    • Issue date May 22, 2001
    • International Business Machines Corporation
    • Sharon Corinne Freedman
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS