Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4234158 | Combination tank car valve skid and valve seat wherein the skid is welded to the valve seat | Dallas W. Rollins, Gunter R. Behle | 1980-11-18 |
| 4234159 | Combination tank car valve skid and valve seat in which end portions on the skid are attached to the tank with fasteners which do not require stress relieving of the tank | Dallas W. Rollins, Gunter R. Behle | 1980-11-18 |
| 4209036 | Adapter for bottom operable tank car valve | — | 1980-06-24 |
| 4184663 | Combination tank car valve skid and valve seat | Dallas W. Rollins, Gunter R. Behle | 1980-01-22 |