Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5972194 | Process for producing a base mold for electrolytically producing seamless rotary screen printing stencils | Karl-Wilhelm Saueressig | 1999-10-26 |
| 4998136 | Continuous microfilming apparatus | Wolfram Betzold, Karl-Heinz Dietrich, Peter Griessner | 1991-03-05 |