Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4428723 | Apparatus for stretching a continuously advancing synthetic-resin web and feeding same stepwise to a thermoforming machine | by Erika Thiel, heiress | 1984-01-31 |
| 4234530 | Method for the manufacture of thin-walled shaped articles of crystalline thermoplastic material | Barbara Geppert | 1980-11-18 |
| 4234536 | Method for the manufacture of thin-walled shaped articles of crystalline thermoplastic material | Barbara Geppert | 1980-11-18 |