Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4258906 | Device for gradient heating of wire | Endel T. Lippmaa, Tynu K. Karu | 1981-03-31 |
| 4237444 | Heavy-duty precision wire-wound alternating-current resistor and method of making | Endel T. Lippmaa | 1980-12-02 |