Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820969 | Polarity compensated apparatus for measuring the impedance of a polar device | Tomio Wakasugi | 1989-04-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820969 | Polarity compensated apparatus for measuring the impedance of a polar device | Tomio Wakasugi | 1989-04-11 |