Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4747741 | Device for closing the charging opening for pressure resistant containers | — | 1988-05-31 |
| 4607767 | Closure device for the discharge opening of an autoclave | Hildegard Schwarz | 1986-08-26 |