HS

Helmut Schiwek

📍 Duisburg, DE: #2 of 28 inventorsTop 8%
Overall (1997): #38,771 of 185,788Top 25%
2
Patents 1997

Issued Patents 1997

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5690715 Glass fiber manufacturing process and plant 1997-11-25
5688074 Oil barrier 1997-11-18