Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888036 | Method of manufacture of glass bodies | — | 1989-12-19 |
| 4866857 | Method of and arrangement for drying ceramic green bodies | — | 1989-09-19 |
| 4859224 | Method of manufacturing glass or ceramic bodies | — | 1989-08-22 |
| 4816051 | Method of manufacturing glass bodies by means of extrusion | Benno Schmidl | 1989-03-28 |