TREA

John M. Choberka

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  • Pompano Beach, FL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Dot matrix print head
    • Patent number 4,362,406
    • Issue date Dec 7, 1982
    • International Business Machines Corp.
    • John M. Choberka
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Data matrix print head
    • Patent number 4,284,363
    • Issue date Aug 18, 1981
    • International Business Machines Corp.
    • John M. Choberka
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS