Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862199 | Adjustable adapter for borescope and film/video camera | Mark Centkowski, Steven E. Manios, Sr. | 1989-08-29 |
| 4818300 | Method for making lithoplate | Elwin L. Rooy, Gerald R. Petrey, Douglas A. Granger, Raymond T. Richter, H. Gray Reavis, Jr. | 1989-04-04 |