Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4430438 | Enamel frit and a process for two-layer and multi-layer one-fire enamelling | Otto Krist, Heinz Drave | 1984-02-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4430438 | Enamel frit and a process for two-layer and multi-layer one-fire enamelling | Otto Krist, Heinz Drave | 1984-02-07 |