Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5669222 | Refrigeration passive defrost system | Heinz Jaster | 1997-09-23 |
DN
David Joseph Najewicz
Overall (1997): #162,197 of 185,788Top 90%
1
Patents 1997