Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D266270 | Fetus pulse and blood flow detector | Masuo Sugawara | 1982-09-21 |
| D264623 | Blood flow detector | Masuo Sugawara | 1982-05-25 |
| D262738 | Blood flow detector | Masuo Sugawara | 1982-01-19 |