Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806925 | Infrared signalling system for detecting a predetermined state of a high voltage device | Julien Simard, Raymond Lessard | 1989-02-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806925 | Infrared signalling system for detecting a predetermined state of a high voltage device | Julien Simard, Raymond Lessard | 1989-02-21 |