Jung-hsiu Chen

3 Patents

• US122881162025

  Electronic Card Capable of Light-emitting Display

  BEAUTIFUL CARD CORPORATION

  0 cites
• US119480342024

  Electronic Card Structure with Decoration

  BEAUTIFUL CARD CORPORATION

  0 cites
• US117558702023

  Light Emitting Electronic Card

  BEAUTIFUL CARD CORPORATION

  0 cites