TREA

Guozong LIU

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  • Shanghai, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Keybed device
    • Patent number 11,114,078
    • Issue date Sep 7, 2021
    • Medeli Electronics (Shanghai) Co., Ltd.
    • Peng Zhou
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents

  • Information Patent Application

    SPRING KEYBOARD
    • Publication number 20230298544
    • Publication date Sep 21, 2023
    • MEDELI MUSICAL INSTRUMENT (ZHUHAI) CO., LTD.
    • Xiaoxian FAN
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
  • Information Patent Application

    KEYBED DEVICE
    • Publication number 20210005174
    • Publication date Jan 7, 2021
    • Medeli Electronics (Shanghai) Co., Ltd.
    • Peng ZHOU
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS