Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846145 | Infrared ray radiation sauna device with heat source of combustion heat | — | 1989-07-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846145 | Infrared ray radiation sauna device with heat source of combustion heat | — | 1989-07-11 |