Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862695 | Split sterling cryogenic cooler | — | 1989-09-05 |
| 4852356 | Cryogenic cooler | Rueven Z. Unger | 1989-08-01 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862695 | Split sterling cryogenic cooler | — | 1989-09-05 |
| 4852356 | Cryogenic cooler | Rueven Z. Unger | 1989-08-01 |