Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4352694 | Process of producing sorel cement | — | 1982-10-05 |
| 4330703 | Layered self-regulating heating article | David A. Horsma, Bernard J. Lyons | 1982-05-18 |
| 4321295 | Modified graphite and process for using same | — | 1982-03-23 |