Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4724875 | Trailer-mounted portable oil change and lubricating system for motor vehicles | Harley D. Longan, Dudley R. Seifert, Stanley A. Williams | 1988-02-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4724875 | Trailer-mounted portable oil change and lubricating system for motor vehicles | Harley D. Longan, Dudley R. Seifert, Stanley A. Williams | 1988-02-16 |