Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4854724 | Method of and apparatus for thermographic evaluation of spot welds | Elton M. Crisman, Jr. | 1989-08-08 |
| 4795906 | Apparatus and system for thermographic identification of parts | Elton M. Crisman, Jr., Asrar A. Khan | 1989-01-03 |