Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814930 | Optical zero-phase current and zero phase voltage sensing arrangement | Masanori Abe, Syunzo Mase | 1989-03-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814930 | Optical zero-phase current and zero phase voltage sensing arrangement | Masanori Abe, Syunzo Mase | 1989-03-21 |