YP

Yevgeny S. Petrashkin

📍 Daugavpils, LV: #1 of 1 inventorsTop 100%
Overall (1994): #45,436 of 165,921Top 30%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
D344608 Heat-recuperating mask Alexandr F. Goryachy, Ljudmila N. Rastorgueva, Vitaly V. Golikov, Alexandr A. Semkov, Mikhail N. Dementiev +1 more 1994-02-22