Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D303390 | Telephone set | Fumiharu Ohta | 1989-09-12 |
| D299228 | Integral telephone and answering set | Teisuke Kurosu, Fumiharu Ohta, Masao Tamura, Hung C. Ming, Satoshi Watanabe | 1989-01-03 |