Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853859 | Operation data recording system | Izuru Morita, Shoji Tozawa, Tsuneo Hisatake | 1989-08-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853859 | Operation data recording system | Izuru Morita, Shoji Tozawa, Tsuneo Hisatake | 1989-08-01 |