Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4300750 | Position indicating valves | William A. Valka | 1981-11-17 | $4,546,000 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4300750 | Position indicating valves | William A. Valka | 1981-11-17 | $4,546,000 |