Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874575 | Multiple discharge cylindrical pump collector | Charlton Dunn, Sen Y. Meng | 1989-10-17 |
| 4822983 | Electrical heaters | Hugh Duffy, Burton E. Miller | 1989-04-18 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874575 | Multiple discharge cylindrical pump collector | Charlton Dunn, Sen Y. Meng | 1989-10-17 |
| 4822983 | Electrical heaters | Hugh Duffy, Burton E. Miller | 1989-04-18 |