TREA

Robert Pfiefer

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  • Riverside, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Flush-mount pivoting speaker
    • Patent number 6,101,262
    • Issue date Aug 8, 2000
    • Speakercraft, Inc.
    • Edward H. Haase
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Flush mount duplex-pivoting speaker unit
    • Patent number D419561
    • Issue date Jan 25, 2000
    • Speakercraft, Inc.
    • Edward H. Haase
    • D14 - Recording, communication, or information retrieval equipment