Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871064 | Cassette storage container | Bruce A. Hehn, Richard R. Lewellen, Mark W. Geis | 1989-10-03 |
| 4834238 | Cassette security package | Bruce A. Hehn | 1989-05-30 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871064 | Cassette storage container | Bruce A. Hehn, Richard R. Lewellen, Mark W. Geis | 1989-10-03 |
| 4834238 | Cassette security package | Bruce A. Hehn | 1989-05-30 |