TREA

R. Ernst Erni

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  • Corvallis, OR, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Disposable ink jet head
    • Patent number 4,500,895
    • Issue date Feb 19, 1985
    • Hewlett-Packard Company
    • Roy T. Buck
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS