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Richard G. Rutkowski

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  • Milford, CT, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Portable dictating machine
    • Patent number 4,870,516
    • Issue date Sep 26, 1989
    • Dictaphone Corporation
    • John W. Hoover
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Cassette
    • Patent number D293100
    • Issue date Dec 8, 1987
    • Dictaphone Corporation
    • Richard G. Rutkowski
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Dictating machine
    • Patent number D291882
    • Issue date Sep 15, 1987
    • Dictaphone Corporation
    • John W. Hoover
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Record/playback device
    • Patent number D290252
    • Issue date Jun 9, 1987
    • Dictaphone Corporation
    • Richard G. Rutkowski
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Head support and positioning assembly for record/playback device
    • Patent number 4,547,821
    • Issue date Oct 15, 1985
    • Dictaphone Corporation
    • Richard G. Rutkowski
    • G11 - INFORMATION STORAGE
  • Information Patent Grant

    Tape cassette
    • Patent number 4,443,827
    • Issue date Apr 17, 1984
    • Dictaphone Corporation
    • John W. Hoover
    • G11 - INFORMATION STORAGE