Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33036 | Closure mechanism with gas seal | Bernhard Schiefer | 1989-08-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33036 | Closure mechanism with gas seal | Bernhard Schiefer | 1989-08-29 |