PP

Paavo Piiroinen

OA Oy Wartsila Ab: 3 patents #9 of 132Top 7%
📍 Joensuu, FI: #24 of 128 inventorsTop 20%
Overall (All Time): #1,666,830 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
4902053 Door lock Reijo Hakkarainen, Keijo Lehikoinen 1990-02-20
4370875 Slipping cylinder lock — 1983-02-01
4317347 Cylinder lock Kaarlo Martikainen 1982-03-02