Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5726533 | Cathode ray tube having an input resonator cavity | Stefan Grote | 1998-03-10 |
| 5418425 | Multistage collector for electron-beam tubes having collector electrodes indirectly connected by collar members | Rudolf Bachmor, Bernd Offerman | 1995-05-23 |
| 4907750 | Hammermill | — | 1990-03-13 |
| 4250429 | Electron tube cathode | Bernhard Lersmacher, Hans Lydtin, Johannes W. A. Krol | 1981-02-10 |