Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4411308 | Vaulted cover assembly to close a vertical recess in a pressure vessel | Hans-Georg Schwiers, Josef Schoening | 1983-10-25 |
| 4405055 | Vaulted cover with flange and plurality of pipe fittings | Josef Schoening, Hans-Georg Schwiers | 1983-09-20 |