Patent US 4375660A
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| Patent number | US 4375660A |
|---|---|
| Title | Ground isolation monitoring apparatus having a protective circuit |
| Inventors | Stan Tate, Don Roberts, Carl E. Hollingsworth, Rich Nute |
| Company | Tektronix Inc |
| Filing date | 1981-02-03 |
| Grant date | 1983-03-01 |
| Cites |