Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4852480 | Dot line printer with individually replaceable printing head | Michio Koizumi, Seiichi Ohsawa | 1989-08-01 |
| 4795283 | Print head for a dot-printer | Takashi Moriya, Toshihiro Endo | 1989-01-03 |