Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4821516 | Stirling cycle engine | — | 1989-04-18 |
NI
Naotsugu Isshiki
Overall (1989): #74,094 of 140,708Top 55%
1
Patents 1989