Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5351625 | Weld support for railway tank car underbody construction | Laurence E. Culligan | 1994-10-04 |
| 5329859 | Increased strength railway tank for underframe construction and method with center sill pocket and weld support for pooling welding material | Laurence E. Culligan | 1994-07-19 |