Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5300924 | Harmonic measuring instrument for AC power systems with a time-based threshold means | Alexander McEachern | 1994-04-05 |
| 5298885 | Harmonic measuring instrument for AC power systems with poly-phase threshold means | Alexander McEachern | 1994-03-29 |
| 5298888 | Harmonic measuring instrument for AC power systems with latched indicator means | Alexander McEachern | 1994-03-29 |