LM

Leonid Multakh

AC Acker Drill Co.: 2 patents #1 of 8Top 15%
Overall (All Time): #2,370,931 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4274769 Impregnated diamond drill bit construction — 1981-06-23
4211294 Impregnated diamond drill bit — 1980-07-08