Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822165 | Device for illuminating components of transparent material in testing for irregularities | Harald Schmalfuss, Friedel Sinsel | 1989-04-18 |
| 4815844 | Device for testing components of transparent material for surface irregularities and occlusions | Harald Schmalfuss, Friedel Sinsel | 1989-03-28 |
| 4749870 | Method and apparatus for measuring data for calculating the diameter of wheels, especially railroad wheel sets | Harald Schmalfuss, Friedel Sinsel, Bernhard Schneider, Werner Heinze | 1988-06-07 |