Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4224381 | Abrasion resistant magnetic record members | Pravin Patel, David H. Johnston | 1980-09-23 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4224381 | Abrasion resistant magnetic record members | Pravin Patel, David H. Johnston | 1980-09-23 |