CH

Chun Chu Hsueh

📍 Danei, TW: #231 of 1,188 inventorsTop 20%
Overall (All Time): #1,616,893 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6409181 Combination type electric drill chuck structure — 2002-06-25
6302407 Chuck structure with locking and positioning functions — 2001-10-16
6182978 Self locking device for power tool — 2001-02-06