OA

Olli Arpalahti

AA A. Ahlstrom: 2 patents #5 of 31Top 20%
📍 Varkaus, FI: #1 of 2 inventorsTop 50%
Overall (1994): #23,575 of 165,921Top 15%
2
Patents 1994

Issued Patents 1994

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5370772 Method for generating heat and electricity in a sulphate pulp mill Jukka Pekkinen 1994-12-06
5326081 Method and apparatus for cooling hot gases 1994-07-05