TREA

Robert G. Bogren

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  • Worcester, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Document storage file
    • Patent number 4,327,952
    • Issue date May 4, 1982
    • Wright Line Inc.
    • Bernard T. Cournoyer
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Document holder
    • Patent number 4,285,555
    • Issue date Aug 25, 1981
    • Wright Line Inc.
    • Norman A. Hedstrom
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Document holder
    • Patent number 4,171,854
    • Issue date Oct 23, 1979
    • Wright Line Inc.
    • Norman A. Hedstrom
    • B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
  • Information Patent Grant

    Out-indicator for hanging filing system
    • Patent number D251477
    • Issue date Apr 3, 1979
    • Wright Line Inc.
    • Norman A. Hedstrom
    • D20 - Sales and advertising equipment