Hong-bi Dong Nguyen

2 Patents

• US124392092025

  Speaker with Improved Frequency Response and Related Electronic Sound Signal Circuit, Sound System and Production Method

  Sound Solutions International (Zhenjiang) Co., Ltd.

  0 cites
• US117165722023

  Method of Production of an Electrodynamic Acoustic Transducer with a High Density Coil

  Sound Solutions International Co., Ltd.

  0 cites