Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4796295 | Telephone circuits | Michael J. Gay | 1989-01-03 |
JG
Johannes Gutmann
Overall (1989): #95,177 of 140,708Top 70%
1
Patents 1989