Xiaofeng Ruan

4 Patents

• US122329172025

  Electric Toothbrush Handle

  0 cites
• US120593142024

  Electric Toothbrush Connector and Electric Toothbrush

  0 cites
• USD10303262024

  Toothbrush Head

  0 cites
• USD10235812024

  Toothbrush Head

  0 cites