Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6295854 | Device and method for moulding a grooved structure into a tubular workpiece | Bernd Stein, Heinz Steinhauer, Wilhelm Zimmermann | 2001-10-02 |
| 6253589 | Flow-turning device and method for producing internally geared wheels using two sets of internal toothing | Bernd Stein, Heinz Steinhauer, Wilhelm Zimmermann | 2001-07-03 |