Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4641677 | Coaxial operating rod and packing seal for top-operated, bottom outlet valve in railway tank car and method of aligning same | — | 1987-02-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4641677 | Coaxial operating rod and packing seal for top-operated, bottom outlet valve in railway tank car and method of aligning same | — | 1987-02-10 |