Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884679 | Secure transport construction for banking depository devices | Harry T. Graef | 1989-12-05 |
| 4871085 | Apparatus for identifying and indicating the content of document canisters | Harry T. Graef, Timothy Allison, Jeffrey Eastman | 1989-10-03 |