Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4334260 | Wall-type intercom station for detention and penitentiary facilities | Ernst A. Schmelter | 1982-06-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4334260 | Wall-type intercom station for detention and penitentiary facilities | Ernst A. Schmelter | 1982-06-08 |