DL

David Ling

HD Hand Tool Design: 2 patents #1 of 6Top 20%
📍 Taichung, TX: #2 of 4 inventorsTop 50%
Overall (2004): #68,347 of 270,089Top 30%
2
Patents 2004

Issued Patents 2004

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6712224 Tool rack assembly 2004-03-30
6701768 Process for making ratchet wheels Hsien-Chung Tuan-Mu 2004-03-09