Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D274905 | Video disc caddy | Charles D. Boltz | 1984-07-31 |
| 4429678 | Cutting stylus for mechanically cutting masters for keel-lapping | Gunter John, Pierre V. Valembois | 1984-02-07 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D274905 | Video disc caddy | Charles D. Boltz | 1984-07-31 |
| 4429678 | Cutting stylus for mechanically cutting masters for keel-lapping | Gunter John, Pierre V. Valembois | 1984-02-07 |