Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4782523 | Tone detection process and device for implementing said process | Claude Galand, Guy Roulier, Robert Vermot-Gauchy | 1988-11-01 |
HC
Helene Cerf-Danon
Overall (All Time): #3,962,248 of 4,157,543Top 100%
1
Patents All Time