Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869314 | Heat exchanger with secondary and tertiary heat exchange surface | Oliver Laing, Karsten Laing, Birger J. Laing | 1989-09-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869314 | Heat exchanger with secondary and tertiary heat exchange surface | Oliver Laing, Karsten Laing, Birger J. Laing | 1989-09-26 |