Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887176 | Double-sided magnetic recording device supporting two transducers in fixed relation | John M. Riley, Gerald J. Kosarko | 1989-12-12 |
TD
Thomas E. Dussinger
Overall (1989): #50,830 of 140,708Top 40%
1
Patents 1989