RT

Ray-Long Tsai

CT Chung-Shan Institute Of Science And Technology: 2 patents #1 of 2Top 50%
Overall (1997): #26,899 of 185,788Top 15%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5698239 Heating mechanism for zipper forming machines Joseph Wu 1997-12-16
5688539 Zipper teeth forming mechanism for zipper forming machines Joseph Wu 1997-11-18