Patent US 3375456A
| Patent number | US 3375456A |
|---|---|
| Title | Variable bandwidth crystal filter circuit |
| Inventors | Arnie Frisch |
| Company | Tektronix Inc |
| Filing date | 1964-12-07 |
| Grant date | 1968-03-26 |
| Cites |
| Patent number | US 3375456A |
|---|---|
| Title | Variable bandwidth crystal filter circuit |
| Inventors | Arnie Frisch |
| Company | Tektronix Inc |
| Filing date | 1964-12-07 |
| Grant date | 1968-03-26 |
| Cites |