Cheng-wen Yang

3 Patents

• USD11249042026

  Banknote Validation Device

  CHENGDING INDUSTRIAL CO., Ltd.

  0 cites
• US126144252026

  Banknote Validation Device Having Rapid Replacement Panel

  CHENGDING INDUSTRIAL CO., Ltd.

  0 cites
• US123841772025

  Printer Enabling Users to Quickly Change and Install Paper

  CHENGDING INDUSTRIAL CO., Ltd.

  0 cites