SO

Simon P. P. Ottengraf

📍 Helmond, NL: #1 of 5 inventorsTop 20%
Overall (1989): #56,246 of 140,708Top 40%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4806148 Apparatus for biological treatment of waste gases — 1989-02-21