CY

Chung-Jeng Yang

Overall (All Time): #1,261,770 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6874303 Grass trimmer drivable by power tool — 2005-04-05
6415690 Spanner — 2002-07-09
5894766 Ratchet screwdriver — 1999-04-20
5546661 Gardening shears — 1996-08-20