Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4816939 | Magnetic recording media and servo systems using light-transmitting optical gratings | Jeremy K. Jones, John J. Mader, William T. Plummer | 1989-03-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4816939 | Magnetic recording media and servo systems using light-transmitting optical gratings | Jeremy K. Jones, John J. Mader, William T. Plummer | 1989-03-28 |