Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845691 | Group delay time measurement apparatus with automatic aperture value setting function | Hiroshi Itaya | 1989-07-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845691 | Group delay time measurement apparatus with automatic aperture value setting function | Hiroshi Itaya | 1989-07-04 |