HM

Howard A. McDonald

SA Swiss Aluminium: 2 patents #74 of 286Top 30%
📍 Hendersonville, NC: #91 of 260 inventorsTop 35%
🗺 North Carolina: #18,756 of 45,564 inventorsTop 45%
Overall (All Time): #2,336,790 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4744545 Apparatus for degassing molten metal — 1988-05-17
4647018 Apparatus for degassing molten metal — 1987-03-03