Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5674417 | Method and apparatus for welding shut a gas passage in vessels | Kenneth J. Clark | 1997-10-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5674417 | Method and apparatus for welding shut a gas passage in vessels | Kenneth J. Clark | 1997-10-07 |