OP

Ossi Paivalainen

OA Oy Tampella Ab: 1 patents #52 of 124Top 45%
📍 Tampere, FI: #1,181 of 2,125 inventorsTop 60%
Overall (All Time): #3,996,145 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4591005 Drill rod opening device for sectional-rod drilling equipment Leo Hakkinen 1986-05-27