Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872196 | Telephone keypad input technique | Paul Royer | 1989-10-03 |
GJ
George W. Schaupp, Jr.
Overall (1989): #111,313 of 140,708Top 80%
1
Patents 1989