Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5509625 | Electrical brush-wear indicator | George D. Rogers | 1996-04-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5509625 | Electrical brush-wear indicator | George D. Rogers | 1996-04-23 |