Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5215139 | Method and mold for aluminothermic welding of rails | Mark A. Swartz, Robert H. Kachik | 1993-06-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5215139 | Method and mold for aluminothermic welding of rails | Mark A. Swartz, Robert H. Kachik | 1993-06-01 |