Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5249778 | Gas stir plug device with visual wear indicator | Dieter Vahlhaus | 1993-10-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5249778 | Gas stir plug device with visual wear indicator | Dieter Vahlhaus | 1993-10-05 |