Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4352659 | Method of heating an end of a length of plastic pipe and a circulating air furnace for carrying out the method | Erkki Salmela | 1982-10-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4352659 | Method of heating an end of a length of plastic pipe and a circulating air furnace for carrying out the method | Erkki Salmela | 1982-10-05 |