HH

Hsuan-Sen Hsiao

Overall (All Time): #1,275,530 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
D440479 Screw driver — 2001-04-17
6199998 Driving tool with illuminating capability — 2001-03-13
5510962 Screwdriver with an illuminator — 1996-04-23
4934221 Apparatus for retaining a replaceable tool head on a T-handle-type wrench — 1990-06-19