Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4307281 | Method of arc welding | Alfred V. Ivannikov, Vyacheslav N. Matveev, Nikolai A. Eroshkin, deceased, by Valeriya I. Eroshkina, administrator, by Mariya I. Eroshkina, administrator | 1981-12-22 |