Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4794642 | Call screening in a public telephone station | Richard L. Maybach, Bhaskar N. Sanakkayala, S. Devendra K. Verma | 1988-12-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4794642 | Call screening in a public telephone station | Richard L. Maybach, Bhaskar N. Sanakkayala, S. Devendra K. Verma | 1988-12-27 |