Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4345620 | Safety valve assembly | Erich Ruchser, Helmut Ott | 1982-08-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4345620 | Safety valve assembly | Erich Ruchser, Helmut Ott | 1982-08-24 |