Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4333520 | Heating and cooling ventilating system with heat recovery | Kengo Hasegawa, Motokazu Uchida | 1982-06-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4333520 | Heating and cooling ventilating system with heat recovery | Kengo Hasegawa, Motokazu Uchida | 1982-06-08 |