Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839913 | Shadowgraph imaging using scatter and fluorescence | Martin Annis | 1989-06-13 |
| 4819256 | Radiographic sensitivity for detection of flaws and cracks | Martin Annis | 1989-04-04 |
| 4807637 | Diaphanography method and apparatus | — | 1989-02-28 |
| 4799247 | X-ray imaging particularly adapted for low Z materials | Martin Annis | 1989-01-17 |