Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872074 | Data transducer position control system for rotating disk data storage equipment | David A. Brown, Donald V. Daniels | 1989-10-03 |
| 4860194 | A method for using a modular unitary disk file subsystem | William G. Moon, Randolph H. Graham | 1989-08-22 |
| 4814909 | Data transducer position control system for rotating disk data storage equipment | David A. Brown, Donald V. Daniels | 1989-03-21 |