WD

William A. Dziak

📍 Maple Heights, OH: #19 of 60 inventorsTop 35%
🗺 Ohio: #30,338 of 73,341 inventorsTop 45%
Overall (All Time): #2,360,597 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4489986 Wear collar device for rotatable cutter bit 1984-12-25
4356873 Cutter mounting and apparatus and method for a drill bit 1982-11-02