Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840220 | Heat pump with electrically heated heat accumulator | Tetsuo Sano | 1989-06-20 |
| 4813474 | Air conditioner apparatus with improved dehumidification control | — | 1989-03-21 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840220 | Heat pump with electrically heated heat accumulator | Tetsuo Sano | 1989-06-20 |
| 4813474 | Air conditioner apparatus with improved dehumidification control | — | 1989-03-21 |