Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876502 | Wide dynamic range current measuring apparatus | Robert T. Elms | 1989-10-24 |
| 4815002 | Obtaining a selected frequency component in rectangular coordinates from a set of electrical waveforms | — | 1989-03-21 |