Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4280725 | Safety closure system | Irving L. Berkowitz | 1981-07-28 |
| D255868 | Hinge design | Irving L. Berkowitz | 1980-07-15 |
| 4202573 | Safety closure system | Irving L. Berkowitz | 1980-05-13 |