Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835470 | Magnetizer having a main electromagnet and leakage flux reducing auxiliary electromagnets for magnetographic inspection | Alexei E. Novikov, Leonid A. Putan, Valery I. Meerovich, Anatoly N. Semizelnikov | 1989-05-30 |