Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4292992 | Valve for handling solids capable of gas-pressure-tight closure against a gas pressure differential | — | 1981-10-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4292992 | Valve for handling solids capable of gas-pressure-tight closure against a gas pressure differential | — | 1981-10-06 |