Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841744 | Double effect air cooled absorption refrigerating machine | Yoshikazu Nagaoka, Shinichi Kannoh, Sadatoshi Takemoto, Shigeo Sugimoto, Tomihisa Oouchi +5 more | 1989-06-27 |