Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4527971 | Disc record stamper alignment | Theo Kroenchen | 1985-07-09 |
| 4496300 | Disc record press forming | — | 1985-01-29 |
| 4249876 | Control of plastics extrusion | Herbert Schloesser, Dietmar Dehn | 1981-02-10 |
| 4235136 | Trimming disc records | — | 1980-11-25 |