Patent US 2280524A
| Patent number | US 2280524A (click link for details and documents via Google Patents) |
|---|---|
| Title | Electrical wave analysis |
| Inventors | Siegfried Hansen |
| Company | General Electric |
| Filing date | 1940-11-01 |
| Grant date | 1942-04-21 |
Very early sampling oscilloscope patent.
See also Patent US 2280531A (identical drawings).