Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4359212 | Apparatus for reducing finely divided iron oxide material | Per Harald Collin, Sune Flink, Bjorn Widell | 1982-11-16 |
| 4334110 | Method of producing symmetrical trinitrobenzene | Nils Billingsson, Karl-Johan Persson, Bengt-Olov Backman | 1982-06-08 |