Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4455471 | Arc welding method and electrode for narrow groove welding | Israel Stol, Gerald G. Lessmann | 1984-06-19 |
| 4307280 | Method for filling internal casting voids | — | 1981-12-22 |