EN

Erkki P. Niskanen

📍 Helsinki, FI: #1,108 of 3,940 inventorsTop 30%
Overall (All Time): #1,677,789 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4586538 Spindle valve for a tube system for liquids — 1986-05-06
4526200 Blocking valve for liquids — 1985-07-02
4196752 Group valve for two separate liquid supply lines — 1980-04-08