TREA

Donald L. Frank

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  • Mesquite, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Temperature controlled printing press
    • Patent number 5,471,927
    • Issue date Dec 5, 1995
    • Royse Manufacturing Company, Inc.
    • Donald L. Frank
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Press dampening system
    • Patent number 5,218,903
    • Issue date Jun 15, 1993
    • Sun Graphic Technologies, Inc.
    • Edward P. MacConnell
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    Press dampening system
    • Patent number 5,158,017
    • Issue date Oct 27, 1992
    • Sun Graphic Technologies, Inc.
    • Edward P. MacConnell
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS