Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4844610 | Backflow isolator and capture system | — | 1989-07-04 |
HJ
Howard L. North, Jr.
Overall (1989): #103,238 of 140,708Top 75%
1
Patents 1989