Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4200836 | Apparatus for measuring insulation resistance in an operating three-phase ungrounded transmission line system | Isamu Okada | 1980-04-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4200836 | Apparatus for measuring insulation resistance in an operating three-phase ungrounded transmission line system | Isamu Okada | 1980-04-29 |