Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4428069 | Apparatus for preformatting an optical disk | Robert L. Hazel | 1984-01-24 |
| 4428075 | Methods of preformatting an optical disk | Robert L. Hazel | 1984-01-24 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4428069 | Apparatus for preformatting an optical disk | Robert L. Hazel | 1984-01-24 |
| 4428075 | Methods of preformatting an optical disk | Robert L. Hazel | 1984-01-24 |