Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4595150 | Blocking slab for pulp grinder | — | 1986-06-17 |
| 4428534 | Method of improving the utilization of the heat energy produced in a wood grinding process | Ari A. M. Maijala | 1984-01-31 |
| 4305590 | Sealing arrangement for a shutter of a pressure grinder | Pekka Haikkala, Eero Hanhilahti, Raimo Pessa | 1981-12-15 |
| 4193865 | Classifying apparatus for a suspension | — | 1980-03-18 |