QZ

Qi Zenghui

LO Logomark: 1 patents #2 of 3Top 70%
Overall (All Time): #2,951,137 of 4,157,543Top 75%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9684391 Telescopic mechanism and touch tool for writing instrument or the like — 2017-06-20