Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4404492 | Cathode structure for cathode ray tubes and method for producing same | — | 1983-09-13 |
| 4400647 | Cathode structure for cathode ray tubes and method | — | 1983-08-23 |
| 4197152 | Attaching self-supporting emissive film to cathode support | Kenneth Speigel | 1980-04-08 |
| 4197153 | Attaching self-supporting emissive film to cathode support | Kenneth Speigel | 1980-04-08 |