Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887284 | Method of checking the presence or absence of an X-ray sheet film in a casette introduced into an apparatus for unloading or loading a sheet film into the cassette, and a device for carrying out the method | Manfred Schmidt, Ernst Widemann | 1989-12-12 |
| 4878282 | Method for the production of friction plates, synchronizing blocker rings or similar structures | — | 1989-11-07 |
| 4819317 | Arrangement for unloading and loading of x-ray film cassettes | Manfred Schmidt, Herbert Plaschke, Otto Butz | 1989-04-11 |
| 4818156 | Tool for making roughing and finishing cuts in a workpiece | — | 1989-04-04 |