Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4496798 | Ringing circuit for telephone subset, designed as an integrated circuit | Joel S. G. Colardelle, Claude P. H. Lerouge | 1985-01-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4496798 | Ringing circuit for telephone subset, designed as an integrated circuit | Joel S. G. Colardelle, Claude P. H. Lerouge | 1985-01-29 |