Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4429183 | Circuit arrangement for detecting and interpreting interferences with automatic machines and particularly coin telephones | Elmar Wilke | 1984-01-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4429183 | Circuit arrangement for detecting and interpreting interferences with automatic machines and particularly coin telephones | Elmar Wilke | 1984-01-31 |