Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5654641 | Method and device for testing the effectiveness of a lighting ground system | Jean-Louis Query | 1997-08-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5654641 | Method and device for testing the effectiveness of a lighting ground system | Jean-Louis Query | 1997-08-05 |