Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878677 | Shut off seal about a shaft of a device having a side entry into a tank | John C. Schneider | 1989-11-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878677 | Shut off seal about a shaft of a device having a side entry into a tank | John C. Schneider | 1989-11-07 |