Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4350182 | Operating equipment for gate valves (passage valves) | Helmut Gottling | 1982-09-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4350182 | Operating equipment for gate valves (passage valves) | Helmut Gottling | 1982-09-21 |