Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4331275 | Orthogonal film drive | Robert D. Therien, Edward J. Kraemer | 1982-05-25 |
| 4324474 | Microfilming system | Edward J. Kraemer, Robert D. Therien, Frederick E. Walsh, Han-Jung Lee, Ronald Thomas Bell +1 more | 1982-04-13 |