Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4204948 | Self-purging seal | Ionel Wechsler, John A. Oberteuffer, John J. Nolan, Henry H. Kolm, Bo R. Arvidson | 1980-05-27 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4204948 | Self-purging seal | Ionel Wechsler, John A. Oberteuffer, John J. Nolan, Henry H. Kolm, Bo R. Arvidson | 1980-05-27 |