Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831836 | Frequency control apparatus of a multi-refrigeration cycle system | — | 1989-05-23 |
FM
Fumio Matsuoka
Overall (1989): #113,599 of 140,708Top 85%
1
Patents 1989