Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5138269 | Method and means for measuring the depth of cracks | — | 1992-08-11 |
| 4695797 | Method of and apparatus for layer thickness measurement | Werner F. Roddeck | 1987-09-22 |
| 4337662 | Electrodynamic sound converter | Hermann-Josef Kopineck, Wolfgang Bottcher, Klaus D. Mreyen, Werner Borchert | 1982-07-06 |
| 4207593 | Method and apparatus for the automatic recognition and evaluation of optical crack indications on the surface of workpieces | Ernst Becker, Ulrich Forstermann | 1980-06-10 |