Patent US 4375660A
| Patent number | US 4375660A (click link for details and documents via Google Patents) |
|---|---|
| Title | Ground isolation monitoring apparatus having a protective circuit |
| Inventors | Stanley H. Tate, Don Roberts, Carl E. Hollingsworth, William R. Nute |
| Company | Tektronix Inc |
| Filing date | 1981-02-03 |
| Grant date | 1983-03-01 |