Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4328019 | Melting system and process for use in the production of high temperature mineral wool insulation | Edward L. Kells | 1982-05-04 |
| 4320244 | Melting furnace for the production of mineral wool insulation | Edward L. Kells | 1982-03-16 |