Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4336642 | Method of enlarging the heat exchange surface of a tubular element | — | 1982-06-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4336642 | Method of enlarging the heat exchange surface of a tubular element | — | 1982-06-29 |