Jigeng Duan

5 Patents

• USD11138352026

  Remote Control

  0 cites
• USD10897332025

  Bicycle Headlight

  0 cites
• USD10706262025

  Bicycle Bell

  0 cites
• USD10636732025

  Bicycle Horn

  0 cites
• USD10287692024

  Electric Horn

  0 cites