RC

Richard Chang

WC Welcome Co.: 1 patents #1 of 1Top 100%
Overall (2005): #38,263 of 245,428Top 20%
2
Patents 2005

Issued Patents 2005

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6936790 Electric heat sealer with safety device Shu-Hui Chou 2005-08-30
6919537 Electric heat sealer 2005-07-19