AH

Aimo Helin

OA Oy Tampella Ab: 1 patents #5 of 10Top 50%
📍 Tampere, FI: #6 of 16 inventorsTop 40%
Overall (1982): #77,730 of 81,411Top 100%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4355691 Hydraulic drilling apparatus Esa Karru, Pekka Salmi, Hannu Paasonen 1982-10-26