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TROLLING ENTERPRISES CO., LTD

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  • NEW TAIPEI CITY, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Elevating speaker for use in bathtub
    • Patent number D1030704
    • Issue date Jun 11, 2024
    • TROLLING ENTERPRISES CO., LTD.
    • Huei-Ching Chou Lu
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Elevating speaker device for use in bathtub
    • Patent number 11,582,541
    • Issue date Feb 14, 2023
    • TROLLING ENTERPRISES CO. LTD.
    • Huei-Ching Chou Lu
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

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