Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865190 | Security package with rotatable locking channel | Barry Gregerson | 1989-09-12 |
| D302945 | Cassette package | Roger L. Mortensen, Barry Gregerson | 1989-08-22 |
| 4817799 | Disk package | Barry Gregerson, Roger L. Mortensen | 1989-04-04 |