Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5628254 | Moisture barrier, filter seal for hopper rail car hatches | Michael A. Ott, Charles Hendee | 1997-05-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5628254 | Moisture barrier, filter seal for hopper rail car hatches | Michael A. Ott, Charles Hendee | 1997-05-13 |